You are currently on the new version of our website. Access the old version .

104 Results Found

  • Article
  • Open Access
33 Citations
3,428 Views
15 Pages

2 September 2021

Chitosan (CTS) is a deacetylated derivative of chitin that is involved in adaptive response to abiotic stresses. However, the regulatory role of CTS in heat tolerance is still not fully understood in plants, especially in grass species. The aim of th...

  • Article
  • Open Access
21 Citations
6,100 Views
18 Pages

Transcriptome Analysis of a Premature Leaf Senescence Mutant of Common Wheat (Triticum aestivum L.)

  • Qiang Zhang,
  • Chuan Xia,
  • Lichao Zhang,
  • Chunhao Dong,
  • Xu Liu and
  • Xiuying Kong

Leaf senescence is an important agronomic trait that affects both crop yield and quality. In this study, we characterized a premature leaf senescence mutant of wheat (Triticum aestivum L.) obtained by ethylmethane sulfonate (EMS) mutagenesis, named m...

  • Article
  • Open Access
14 Citations
4,299 Views
20 Pages

Eukaryotic translation elongation factors are implicated in protein synthesis across different living organisms, but their biological functions in the pathogenesis of cucumber mosaic virus (CMV) and tobacco rattle virus (TRV) infections are poorly un...

  • Article
  • Open Access
7 Citations
4,166 Views
18 Pages

Leaf senescence is the last period of leaf growth and a dynamic procedure associated with its death. The adaptability of the plants to changing environments occurs thanks to leaf senescence. Hence, transcriptional profiling is important to figure out...

  • Review
  • Open Access
23 Citations
5,942 Views
17 Pages

The Role of the S40 Gene Family in Leaf Senescence

  • Muhammad Jehanzeb,
  • Xiangzi Zheng and
  • Ying Miao

16 October 2017

Senescence affect different traits of plants, such as the ripening of fruit, number, quality and timing of seed maturation. While senescence is induced by age, growth hormones and different environmental stresses, a highly organized genetic mechanism...

  • Review
  • Open Access
56 Citations
4,911 Views
17 Pages

Leaf senescence is a natural phenomenon that occurs during the aging process of plants and is influenced by various internal and external factors. These factors encompass plant hormones, as well as environmental pressures such as inadequate nutrients...

  • Article
  • Open Access
29 Citations
4,102 Views
12 Pages

BrTCP7 Transcription Factor Is Associated with MeJA-Promoted Leaf Senescence by Activating the Expression of BrOPR3 and BrRCCR

  • Yan-mei Xu,
  • Xian-mei Xiao,
  • Ze-xiang Zeng,
  • Xiao-li Tan,
  • Zong-li Liu,
  • Jian-wen Chen,
  • Xin-guo Su and
  • Jian-ye Chen

14 August 2019

The plant hormone jasmonic acid (JA) has been recognized as an important promoter of leaf senescence in plants. However, upstream transcription factors (TFs) that control JA biosynthesis during JA-promoted leaf senescence remain unknown. In this stud...

  • Article
  • Open Access
25 Citations
6,027 Views
26 Pages

Fine-Mapping of Sorghum Stay-Green QTL on Chromosome10 Revealed Genes Associated with Delayed Senescence

  • K. N. S. Usha Kiranmayee,
  • C. Tom Hash,
  • S. Sivasubramani,
  • P. Ramu,
  • Bhanu Prakash Amindala,
  • Abhishek Rathore,
  • P. B. Kavi Kishor,
  • Rajeev Gupta and
  • Santosh P. Deshpande

1 September 2020

This study was conducted to dissect the genetic basis and to explore the candidate genes underlying one of the important genomic regions on an SBI-10 long arm (L), governing the complex stay-green trait contributing to post-flowering drought-toleranc...

  • Article
  • Open Access
1,763 Views
17 Pages

12 December 2023

Leaf senescence is an important developmental process for deciduous trees during which part of leaf nitrogen is remobilized to branches, thus being beneficial for nitrogen conservation. However, the associated regulatory mechanism remains largely unk...

  • Article
  • Open Access
27 Citations
5,803 Views
11 Pages

Characterization of Somatic Embryogenesis Receptor-Like Kinase 4 as a Negative Regulator of Leaf Senescence in Arabidopsis

  • Xiaoxu Li,
  • Salman Ahmad,
  • Akhtar Ali,
  • Cun Guo,
  • Hong Li,
  • Jing Yu,
  • Yan Zhang,
  • Xiaoming Gao and
  • Yongfeng Guo

14 January 2019

Leaf senescence is a genetically controlled process that involves the perception of extracellular signals and signal transduction. The receptor-like protein kinases (RLKs) are known to act as an important class of cell surface receptors and are invol...

  • Article
  • Open Access
3 Citations
2,032 Views
16 Pages

Transcriptome-Wide Identification of Dark- and Salt-Induced Senescence-Related NAC Gene Family Members in Alfalfa

  • Xiangxue Duan,
  • Daicai Tian,
  • Peiran Gao,
  • Yue Sun,
  • Xiaojing Peng,
  • Jiangqi Wen,
  • Hongli Xie,
  • Zeng-Yu Wang and
  • Maofeng Chai

15 August 2024

Leaves are a key forage part for livestock, and the aging of leaves affects forage biomass and quality. Preventing or delaying premature leaf senescence leads to an increase in pasture biomass accumulation and an improvement in alfalfa quality. NAC t...

  • Article
  • Open Access
7 Citations
3,129 Views
15 Pages

Senescence is the last stage of plant development and is controlled by both internal and external factors. Premature senescence significantly affects the yield and quality of cotton. However, the genetic architecture underlying cotton senescence rema...

  • Article
  • Open Access
12 Citations
2,499 Views
19 Pages

Transcriptome Analysis of Early Senescence in the Post-Anthesis Flag Leaf of Wheat (Triticum aestivum L.)

  • Ling Lei,
  • Dan Wu,
  • Chao Cui,
  • Xiang Gao,
  • Yanjie Yao,
  • Jian Dong,
  • Liangsheng Xu and
  • Mingming Yang

1 October 2022

Flag leaf senescence is an important determinant of wheat yield, as leaf senescence occurs in a coordinated manner during grain filling. However, the biological process of early senescence of flag leaves post-anthesis is not clear. In this study, ear...

  • Article
  • Open Access
12 Citations
2,902 Views
20 Pages

26 October 2022

The heavy metal associated isoprenylated plant proteins (HIPPs) are characterized by at least one heavy metal associated (HMA) domain and a C-terminal isoprenylation motif. Hordeum vulgare farnesylated protein 1 (HvFP1), a barley HIPP, is upregulated...

  • Communication
  • Open Access
9 Citations
3,981 Views
7 Pages

AHK3-Mediated Cytokinin Signaling Is Required for the Delayed Leaf Senescence Induced by SSPP

  • Yanan Wang,
  • Xiyu Zhang,
  • Yanjiao Cui,
  • Lei Li,
  • Dan Wang,
  • Yuanyuan Mei and
  • Ning Ning Wang

Leaf senescence is a highly-programmed developmental process regulated by an array of multiple signaling pathways. Our group previously reported that overexpression of the protein phosphatase-encoding gene SSPP led to delayed leaf senescence and sign...

  • Article
  • Open Access
31 Citations
4,354 Views
16 Pages

DRL1, Encoding A NAC Transcription Factor, Is Involved in Leaf Senescence in Grapevine

  • Ziguo Zhu,
  • Guirong Li,
  • Chaohui Yan,
  • Li Liu,
  • Qingtian Zhang,
  • Zhen Han and
  • Bo Li

The NAC (for NAM, ATAF1,2, and CUC2) proteins family are plant-specific transcription factors, which play important roles in leaf development and response to environmental stresses. In this study, an NAC gene, DRL1, isolated from grapevine Vitis vini...

  • Article
  • Open Access
873 Views
16 Pages

8 October 2025

Leaf senescence is the final, programmed stage of leaf development, marked by nutrient remobilization and tightly regulated molecular events. Although alternative splicing has emerged as a major regulator of plant development, its role in isoform swi...

  • Article
  • Open Access
16 Citations
5,974 Views
19 Pages

iTRAQ-Based Quantitative Proteomic Analysis Reveals Cold Responsive Proteins Involved in Leaf Senescence in Upland Cotton (Gossypium hirsutum L.)

  • Xuewei Zheng,
  • Shuli Fan,
  • Hengling Wei,
  • Chengcheng Tao,
  • Qiang Ma,
  • Qifeng Ma,
  • Siping Zhang,
  • Hongbin Li,
  • Chaoyou Pang and
  • Shuxun Yu

16 September 2017

Premature leaf senescence occurs in the ultimate phase of the plant, and it occurs through a complex series of actions regulated by stress, hormones and genes. In this study, a proteomic analysis was performed to analyze the factors that could induce...

  • Article
  • Open Access
23 Citations
4,498 Views
25 Pages

Receptor-like kinases (RLKs) constitute a large group of cell surface receptors that play crucial roles in multiple biological processes. However, the function of most RLKs in plants has not been extensively explored, and much less for the class of c...

  • Review
  • Open Access
8 Citations
4,561 Views
36 Pages

4 December 2024

Leaf senescence, the final stage of leaf development, is crucial for plant fitness as it enhances nutrient reutilization, supporting reproductive success and overall plant adaptation. Understanding its molecular and genetic regulation is essential to...

  • Article
  • Open Access
26 Citations
6,872 Views
17 Pages

9 April 2018

Isolating and characterizing mutants with altered senescence phenotypes is one of the ways to understand the molecular basis of leaf aging. Using ethyl methane sulfonate mutagenesis, a new rice (Oryza sativa) mutant, brown midrib leaf (bml), was isol...

  • Article
  • Open Access
4 Citations
2,466 Views
17 Pages

MbNAC22, a Malus baccata NAC Transcription Factor, Increased Drought and Salt Tolerance in Arabidopsis

  • Kuibao Jiao,
  • Jiaxin Han,
  • Baitao Guo,
  • Yuqi Wu,
  • Lei Zhang,
  • Yuze Li,
  • Penghui Song,
  • Deguo Han,
  • Yadong Duan and
  • Xingguo Li

14 May 2023

As an excellent grafting material, Malus baccata (L.) Borkh is native to Liaoning, Jilin, Heilongjiang and other regions in China, with a strong adverse environmental adaptability. As a typical transcription factor, the NAC gene acts as a regulator i...

  • Article
  • Open Access
10 Citations
4,157 Views
15 Pages

Transgenerationally Transmitted DNA Demethylation of a Spontaneous Epialleles Using CRISPR/dCas9-TET1cd Targeted Epigenetic Editing in Arabidopsis

  • Min Wang,
  • Li He,
  • Bowei Chen,
  • Yanwei Wang,
  • Lishan Wang,
  • Wei Zhou,
  • Tianxu Zhang,
  • Lesheng Cao,
  • Peng Zhang and
  • Qingzhu Zhang

10 September 2022

CRISPR/dCas9 is an important DNA modification tool in which a disarmed Cas9 protein with no nuclease activity is fused with a specific DNA modifying enzyme. A previous study reported that overexpression of the TET1 catalytic domain (TET1cd) reduces g...

  • Article
  • Open Access
4 Citations
1,609 Views
19 Pages

Knockdown of SlYTHDF2 Accelerates Dark–Induced Tomato Leaf Senescence by Affecting the ABA Pathway

  • Xinru Chen,
  • Zihan Gao,
  • Yangyang Li,
  • Xiaoqian Nie,
  • Qiaoli Xie,
  • Guoping Chen and
  • Zongli Hu

6 October 2024

N6–methyladenosine (m6A) is a widespread post–transcriptional modification in eukaryotic mRNAs. Proteins with the YTH structural domain act as m6A–binding proteins by recognizing the m6A modification and regulating mRNA through this...

  • Article
  • Open Access
790 Views
18 Pages

Genome-Wide Identification of the TCP Gene Family in Chimonanthus praecox and Functional Analysis of CpTCP2 Regulating Leaf Development and Flowering in Transgenic Arabidopsis

  • Yinzhu Cao,
  • Gangyu Guo,
  • Huafeng Wu,
  • Xia Wang,
  • Bin Liu,
  • Ximeng Yang,
  • Qianli Dai,
  • Hengxing Zhu,
  • Min Lu and
  • Shunzhao Sui
  • + 3 authors

1 October 2025

TCP transcription factors represent a crucial family of plant regulators that contribute significantly to growth and developmental processes. Although the TCP gene family has been extensively studied in various plant species, research on Chimonanthus...

  • Article
  • Open Access
2 Citations
2,274 Views
18 Pages

11 November 2024

As the most important organ for photosynthesis, leaves provide the main energy source for plant growth. Leaf traits affect light energy utilization and, thus, plant development and biomass. Given the high morphological variability of leaves between a...

  • Article
  • Open Access
13 Citations
2,759 Views
15 Pages

13 February 2024

Melatonin, a pleiotropic small molecule, is employed in horticultural crops to delay senescence and preserve postharvest quality. In this study, 100 µM melatonin treatment delayed a decline in the color difference index h* and a*, maintaining t...

  • Article
  • Open Access
2 Citations
1,148 Views
30 Pages

26 July 2025

Leaf phenology of trees responds to temperature and photoperiod cues, mediated by underlying genes and plasticity. However, uncertainties remain regarding how smaller-scale phenological variation in cold-limited regions has been affected by modified...

  • Article
  • Open Access
13 Citations
3,159 Views
17 Pages

Anthocyanin Biosynthesis Associated with Natural Variation in Autumn Leaf Coloration in Quercus aliena Accessions

  • Xiong Yang,
  • Ning Yang,
  • Qian Zhang,
  • Ziqi Pei,
  • Muxi Chang,
  • Huirong Zhou,
  • Yaoyao Ge,
  • Qinsong Yang and
  • Guolei Li

12 October 2022

Quercus aliena is an economically important tree species and one of the dominant native oak species in China. Although its leaves typically turn yellow in autumn, we observed natural variants with red leaves. It is important to understand the mechani...

  • Feature Paper
  • Article
  • Open Access
3 Citations
3,744 Views
21 Pages

PRAT Proteins Operate in Organellar Protein Import and Export in Arabidopsis thaliana

  • Claudia Rossig,
  • John Gray,
  • Oscar Valdes,
  • Armin Springer,
  • Sachin Rustgi,
  • Diter von Wettstein,
  • Christiane Reinbothe,
  • Joachim Rassow and
  • Steffen Reinbothe

11 May 2021

Chloroplasts need to import preproteins and amino acids from the cytosol during their light-induced differentiation. Similarly, chloroplasts have to export organic matter including proteins and amino acids during leaf senescence. Members of the PRAT...

  • Article
  • Open Access
26 Citations
6,472 Views
23 Pages

28 January 2019

Leaf senescence is highly regulated by transcriptional reprogramming, implying an important role for transcriptional regulators. ETHYLENE RESPONSE FACTOR4 (ERF4) was shown to be involved in senescence regulation and to exist in two different isoforms...

  • Article
  • Open Access
7 Citations
3,010 Views
17 Pages

OsACA9, an Autoinhibited Ca2+-ATPase, Synergically Regulates Disease Resistance and Leaf Senescence in Rice

  • Xinyu Wang,
  • Ziyao Wang,
  • Yiduo Lu,
  • Jiani Huang,
  • Zhuoer Hu,
  • Junlei Lou,
  • Xinyue Fan,
  • Zhimin Gu,
  • Pengcheng Liu and
  • Xifeng Chen

3 February 2024

Calcium (Ca2+) is a versatile intracellular second messenger that regulates several signaling pathways involved in growth, development, stress tolerance, and immune response in plants. Autoinhibited Ca2+-ATPases (ACAs) play an important role in the r...

  • Article
  • Open Access
6 Citations
5,914 Views
18 Pages

Neem Leaf Extract Exhibits Anti-Aging and Antioxidant Effects from Yeast to Human Cells

  • Jinye Dang,
  • Gongrui Zhang,
  • Jingjing Li,
  • Libo He,
  • Yi Ding,
  • Jiaxiu Cai,
  • Guohua Cheng,
  • Yuhui Yang,
  • Zhiyi Liu and
  • Ke Liu
  • + 1 author

16 May 2024

Neem leaves have long been used in traditional medicine for promoting longevity. However, the precise mechanisms underlying their anti-aging effects remain elusive. In this study, we investigated the impact of neem leaf extract (NLE) extracted from a...

  • Article
  • Open Access
18 Citations
2,722 Views
15 Pages

12 August 2022

Postharvest yellowing of leafy plant is a manifestation of senescence, and melatonin (MT) is known to delay leaf senescence in some higher plants. Herein, we investigated the effect of exogenous MT treatment on postharvest pakchoi by monitoring the e...

  • Review
  • Open Access
13 Citations
4,055 Views
20 Pages

Cis-Regulation by NACs: A Promising Frontier in Wheat Crop Improvement

  • Adnan Iqbal,
  • Joanna Bocian,
  • Amir Hameed,
  • Waclaw Orczyk and
  • Anna Nadolska-Orczyk

6 December 2022

Crop traits are controlled by multiple genes; however, the complex spatio-temporal transcriptional behavior of genes cannot be fully understood without comprehending the role of transcription factors (TFs) and the underlying mechanisms of the binding...

  • Article
  • Open Access
7 Citations
3,255 Views
19 Pages

Comparative Gene Enrichment Analysis for Drought Tolerance in Contrasting Maize Genotype

  • Syed Faheem Anjum Gillani,
  • Adnan Rasheed,
  • Asim Abbasi,
  • Yasir Majeed,
  • Musawer Abbas,
  • Muhammad Umair Hassan,
  • Sameer H. Qari,
  • Najat Binothman,
  • Najla Amin T. Al Kashgry and
  • Yunling Peng

22 December 2022

Drought stress is a significant abiotic factor influencing maize growth and development. Understanding the molecular mechanism of drought tolerance is critical to develop the drought tolerant genotype. The identification of the stress responsive gene...

  • Article
  • Open Access
21 Citations
6,021 Views
17 Pages

27 November 2018

Many spotted-leaf mutants show enhanced disease resistance to multiple pathogen attacks; however, the mechanisms are largely unknown. Here, we reported a novel semi-dominant spotted-leaf mutant 24 (spl24) obtained from an ethyl methane sulfonate (EMS...

  • Article
  • Open Access
4 Citations
3,227 Views
16 Pages

RETRACTED: Formation of Proto-Kranz in C3 Rice Induced by Spike-Stalk Injection Method

  • Dexing Jiang,
  • Feng Wang,
  • Haizi Zhang,
  • Wenwen Gao,
  • Xi Tong,
  • Chuangen Lv and
  • Guoxiang Chen

Introduction of C4 photosynthetic traits into C3 crops is an important strategy for improving photosynthetic capacity and productivity. Here, we report the research results of a variant line of sorghum–rice (SR) plant with big panicle and high spikel...

  • Article
  • Open Access
1,040 Views
25 Pages

Trichomes are specialized epidermal structures that protect plants from environmental stresses, regulated by transcription factors integrating hormonal and environmental cues. This study investigates the roles of two C2H2 zinc finger proteins, GIS2 a...

  • Article
  • Open Access
10 Citations
2,929 Views
28 Pages

Isolation and Characterization of SPOTTED LEAF42 Encoding a Porphobilinogen Deaminase in Rice

  • Lin Liu,
  • Yunpeng Wang,
  • Yunlu Tian,
  • Shuang Song,
  • Zewan Wu,
  • Xin Ding,
  • Hai Zheng,
  • Yunshuai Huang,
  • Shijia Liu and
  • Linglong Liu
  • + 1 author

15 January 2023

The formation and development of chloroplasts play a vital role in the breeding of high-yield rice (Oryza sativa L.). Porphobilinogen deaminases (PBGDs) act in the early stage of chlorophyll and heme biosynthesis. However, the role of PBGDs in chloro...

  • Review
  • Open Access
80 Citations
11,796 Views
19 Pages

The Roles of Gibberellins in Regulating Leaf Development

  • Faujiah Nurhasanah Ritonga,
  • Dandan Zhou,
  • Yihui Zhang,
  • Runxian Song,
  • Cheng Li,
  • Jingjuan Li and
  • Jianwei Gao

9 March 2023

Plant growth and development are correlated with many aspects, including phytohormones, which have specific functions. However, the mechanism underlying the process has not been well elucidated. Gibberellins (GAs) play fundamental roles in almost eve...

  • Article
  • Open Access
30 Citations
5,182 Views
19 Pages

Lonicera macranthoides is an important medicinal plant widely used in traditional Chinese medicine. Luteoloside is a critical bioactive compound in L. macranthoides. To date, the molecular mechanisms underlying luteoloside biosynthesis are still larg...

  • Article
  • Open Access
19 Citations
3,674 Views
22 Pages

28 November 2022

Bread wheat, one of the largest broadacre crops, often experiences various environmental stresses during critical growth stages. Terminal drought and heat stress are the primary causes of wheat yield reduction worldwide. This study aimed to determine...

  • Article
  • Open Access
14 Citations
3,914 Views
19 Pages

Alterations of Endogenous Hormones, Antioxidant Metabolism, and Aquaporin Gene Expression in Relation to γ-Aminobutyric Acid-Regulated Thermotolerance in White Clover

  • Hongyin Qi,
  • Dingfan Kang,
  • Weihang Zeng,
  • Muhammad Jawad Hassan,
  • Yan Peng,
  • Xinquan Zhang,
  • Yan Zhang,
  • Guangyan Feng and
  • Zhou Li

Persistent high temperature decreases the yield and quality of crops, including many important herbs. White clover (Trifolium repens) is a perennial herb with high feeding and medicinal value, but is sensitive to temperatures above 30 °C. The present...

  • Article
  • Open Access
1 Citations
984 Views
22 Pages

Integrative Identification of Chloroplast Metabolism-Related RETICULATA-RELATED Genes in Soybean

  • Qianli Dong,
  • Lu Niu,
  • Xiyu Gong,
  • Qianlong Xing,
  • Jie Liang,
  • Jun Lang,
  • Tianya Wang and
  • Xiangdong Yang

19 May 2025

As a globally important leguminous crop, soybean (Glycine max L.) serves as a vital source of edible oils and proteins for humans and livestock. Oils in leaves can help crops combat fungal infections, adapt to temperature changes via fatty acid modul...

  • Article
  • Open Access
1,240 Views
13 Pages

Mapping of a Quantitative Trait Locus for Stay-Green Trait in Common Wheat

  • Xin Li,
  • Xin Bai,
  • Lijuan Wu,
  • Congya Wang,
  • Xinghui Liu,
  • Qiqi Li,
  • Xiaojun Zhang,
  • Fang Chen,
  • Chengda Lu and
  • Tianling Cheng

27 February 2025

The stay-green (SG) trait enhances photosynthetic activity during the late grain-filling period, benefiting grain yield under drought and heat stresses. CH7034 is a wheat breeding line with SG. To clarify the SG loci carried by CH7034 and obtain link...

  • Article
  • Open Access
5 Citations
3,802 Views
15 Pages

Evidence have indicated that RR-type MYB-related transcription factors (TFs) are functionally diverse in regulating floral development, fruit development, leaf senescence, ABA response, and drought and salt responses. Several RR-type MYB-related TFs...

  • Article
  • Open Access
25 Citations
6,305 Views
26 Pages

10 November 2020

Improving crop nitrogen (N) limitation adaptation (NLA) is a core approach to enhance N use efficiency (NUE) and reduce N fertilizer application. Rapeseed has a high demand for N nutrients for optimal plant growth and seed production, but it exhibits...

  • Article
  • Open Access
7 Citations
3,111 Views
14 Pages

Genome-Wide Identification, Evolution, and Expression Analysis of the TCP Gene Family in Rose (Rosa chinensis Jacq.)

  • Yi Hou,
  • Chunguo Fan,
  • Jingrui Sun,
  • Yufei Chang,
  • Jun Lu,
  • Jingjing Sun,
  • Changquan Wang and
  • Jinyi Liu

Roses have not only high ornamental and economic values but also cultural importance worldwide. As a plant-specific transcription factor gene family, the TCP (TEOSINTE BRANCHED 1, CYCLOIDEA, PROLIFERATING CELL FACTOR LAND 2) genes have been indicated...

  • Article
  • Open Access
21 Citations
3,378 Views
20 Pages

Over-Expression of Dehydroascorbate Reductase Improves Salt Tolerance, Environmental Adaptability and Productivity in Oryza sativa

  • Young-Saeng Kim,
  • Seong-Im Park,
  • Jin-Ju Kim,
  • Sun-Young Shin,
  • Sang-Soo Kwak,
  • Choon-Hwan Lee,
  • Hyang-Mi Park,
  • Yul-Ho Kim,
  • Il-Sup Kim and
  • Ho-Sung Yoon

Abiotic stress induces reactive oxygen species (ROS) generation in plants, and high ROS levels can cause partial or severe oxidative damage to cellular components that regulate the redox status. Here, we developed salt-tolerant transgenic rice plants...

of 3