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Horticulturae
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Recent Advances in Genetics, Breeding, and Biotechnology of Solanaceous Crops
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Recent Advances in Genetics, Breeding, and Biotechnology of Solanaceous Crops

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Genetics, Genomics, Breeding, and Biotechnology (G2B2)".

Deadline for manuscript submissions: closed (20 February 2026) | Viewed by 4178

Special Issue Editors

Dr. Qian You

E-Mail Website
Guest Editor
Vegetable Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
Interests: solanaceae vegetables; genetic mapping; functional genomics; molecular-assisted breeding
Prof. Dr. Feng Wang

E-Mail Website
Guest Editor
College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
Interests: vegetable; abiotic stress; biotic stress; genetic improvement
Special Issues, Collections and Topics in MDPI journals
Dr. Qiang Li

E-Mail Website
Guest Editor
College of Horticultural, Hebei Agricultural University, Baoding 071001, China
Interests: solanaceae vegetables; genetics; genome editing; fruit development; molecular breeding
Dr. Zhiqin Liu

E-Mail Website
Guest Editor
College of Agriculture, Fujian Agriculture and Forestry University, Fuzhou 350001, China
Interests: solanaceae vegetables; plant immunity; plant physiology; plant biochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Solanaceous crops, such as tomato (Solanum lycopersicum L.), pepper (Capsicum annuum L.), eggplant (Solanum melongena L.), and potato (Solanum tuberosum L.), are important horticultural species of the Solanaceae family with significant economic and nutritional values. Plant breeding has played an important role in the improvement of Solanaceous crops through the development of new cultivars with significantly improved plant architecture, yield, and quality. However, these important traits are easily affected by the various biotic and abiotic stresses, including pathogens, insect pests, drought, light, extreme temperatures, etc. Currently, conventional hybridization is still the main method of cultivar development for Solanaceous crops.

The objective of this Special Issue entitled “Recent Advances in Genetics, Breeding, and Biotechnology of Solanaceous Crops” is to present the recent progress in all research towards the improvement of Solanaceous crops. Topics of interest include, but are not limited to, the following:

  1. The application of advanced techniques to explore the relationships or mechanisms between phenotypes and their corresponding genotypes, including multi-omics, single-cell RNA-seq, spatial transcriptomics, ATAC-seq, molecular markers, tissue culture, gene editing, transgenic plants, etc.
  2. Phenotype–genotype associations, including genetic mapping, bulk segregant analysis, etc.
  3. Phenomics and the analysis of germplasm resources.
  4. Functional validation of genes governing traits and their molecular mechanisms.
  5. Genome-wide analysis of important gene families.

Dr. Qian You
Prof. Dr. Feng Wang
Dr. Qiang Li
Dr. Zhiqin Liu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • solanaceous crops
  • genetic resources
  • fruit quality
  • genetic mapping
  • multi-omics
  • biotic and abiotic stresses
  • plant immunity
  • molecular marker

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Published Papers (3 papers)

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Research

22 pages, 7771 KB  
Article
Genetic Analysis of the Special Peel Color Segregation Ratio Coregulated by Anthocyanin and Chlorophyll Pathway Genes in Eggplant
by Lisha Fan, Meng Li, Qian You, Tao Li, Yanwei Hao and Baojuan Sun
Horticulturae 2026, 12(3), 391; https://doi.org/10.3390/horticulturae12030391 - 21 Mar 2026
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Abstract
In the study of eggplant (Solanum melongena L.), a cross between the green peel line 19143 and the white peel line 19147 produced E4957 F1 hybrids with a purple–brown peel. Self-fertilization of the F1 hybrids yielded E4957 F2 offspring [...] Read more.
In the study of eggplant (Solanum melongena L.), a cross between the green peel line 19143 and the white peel line 19147 produced E4957 F1 hybrids with a purple–brown peel. Self-fertilization of the F1 hybrids yielded E4957 F2 offspring with a segregation ratio of 27:9:21:7 among individuals with purple–brown, purple–red, green, and white peel colors, respectively, which was consistent with a genetic model controlled by reciprocal recessive epistasis between D and P, and Gv1 likely acting as a modifying factor. The green peel line 19143 exhibited higher chlorophyll but lower anthocyanin levels than the white peel line 19147, which contained low levels of both pigments, while the E4957 F1 hybrids had elevated levels of both pigments. Two epistatic genes, D and P, associated with anthocyanin synthesis, were mapped on chromosomes 10 and 8, respectively. The putative modifying locus Gf, involved in chlorophyll accumulation in the flesh, was mapped on chromosome 8, and the localization interval was close to the previously reported Gv1 locus associated with chlorophyll synthesis in the peel. DNA markers (InDel22522, InDel5531, InDel-APRR2) were developed to genotype 237 F2 individuals and correlate genotypes with phenotypes. Sequence analysis revealed a 6 bp deletion in the SmMYB1 (D) gene and a large deletion in the SmAPRR2-Like (Gv1) gene in the white peel line 19147, as well as a T to A mutation in the SmANS (P) gene in the green line 19143. This study provided evidence for inheritance between loci involved in anthocyanin and chlorophyll pathways contributing to eggplant peel color variation and provides molecular markers that may facilitate the breeding of eggplant varieties with diverse peel colors. Full article
(This article belongs to the Special Issue Recent Advances in Genetics, Breeding, and Biotechnology of Solanaceous Crops)
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15 pages, 3212 KB  
Article
Phytotoxic Effects of Bisphenol A on Growth and Physiology of Capsicum annuum L.
by Zilin Zhang, Rong Lu, Longxue Li, Yishui Chen, Jin Lan, Rongrong Chen, Yong Zhou and Huibin Han
Horticulturae 2025, 11(7), 788; https://doi.org/10.3390/horticulturae11070788 - 3 Jul 2025
Cited by 1 | Viewed by 1347
Abstract
Bisphenol A (BPA) is a widely used chemical to produce raw materials in plastic production, which has led to its ubiquity in the natural environment and toxicity to both plants and humans. In this study, we evaluated the phytotoxic effects of BPA on [...] Read more.
Bisphenol A (BPA) is a widely used chemical to produce raw materials in plastic production, which has led to its ubiquity in the natural environment and toxicity to both plants and humans. In this study, we evaluated the phytotoxic effects of BPA on the growth and physiology of pepper (Capsicum annuum L.), a globally cultivated horticultural plant. Our high-performance liquid chromatography (HPLC) result revealed that 0.5 mg/kg of BPA treatment did not lead to the accumulation of BPA in the leaves and fruits of pepper plants. The exogenous application of 5 mg/kg of BPA prominently inhibited pepper growth, while 0.5 mg/kg of BPA had no obvious effects on pepper growth. Additionally, our transcriptomic assay revealed that BPA-regulated gene expression is associated with photosynthesis and reactive oxygen species (ROS) signaling. Physiological and qRT-PCR assays further demonstrated that BPA reduced chlorophyll content and increased ROS levels by regulating the expression of genes related to chlorophyll synthesis and ROS production. Our transcriptomic data also elucidated the potential role of plant hormones, including brassinolides (BR), salicylic acid (SA), jasmonic acid (JA), and strigolactone (SL) in mediating BPA-induced phytotoxicity. Furthermore, BPA activated the N6-methyladenosine (m6A) modification to exert its toxicity. Collectively, our findings offer additional insights into the mechanisms through which BPA attenuates pepper plant growth, which might contribute new knowledge toward a better scientific assessment of BPA exposure risks in horticultural species. Full article
(This article belongs to the Special Issue Recent Advances in Genetics, Breeding, and Biotechnology of Solanaceous Crops)
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20 pages, 2684 KB  
Article
Comprehensive Evaluation and Screening for Salt Tolerance Germplasms at Seedling Stage in Eggplant
by Yu Fang, Zhiguo Wang, Yingnan Du, Shuaitao Di, Zhenwei Gao, Xueping Chen, Weiwei Zhang, Lijun Song, Shuangxia Luo and Qiang Li
Horticulturae 2025, 11(6), 697; https://doi.org/10.3390/horticulturae11060697 - 17 Jun 2025
Cited by 2 | Viewed by 1531
Abstract
Salt stress presents a major environmental constraint to global agricultural productivity and crop yield stability. Eggplant (Solanum melongena L.) is one of the most extensively cultivated Solanaceae crops worldwide, and the characterization of its germplasm for salt tolerance is essential to develop [...] Read more.
Salt stress presents a major environmental constraint to global agricultural productivity and crop yield stability. Eggplant (Solanum melongena L.) is one of the most extensively cultivated Solanaceae crops worldwide, and the characterization of its germplasm for salt tolerance is essential to develop breeding programs to target its abiotic stress resilience. In this study, 200 mmol/L NaCl was identified as the initial screening concentration for the discrimination of salt tolerance levels in eggplant seedlings. Salt tolerance indices derived from 13 descriptors, including the plant height, stem diameter, and leaf number, were used to evaluate 165 germplasm resources (108 inbred lines and 57 commercial cultivars). These 165 germplasms were grouped into five groups, and six highly tolerant and eight highly sensitive germplasms were identified. Importantly, a stepwise multiple linear regression model incorporating the root surface area, leaf number, leaf water content, malondialdehyde content, and stem water content achieved 90.02% predictive accuracy, establishing a high-throughput screening protocol for germplasm selection. This systematic approach provides methodological advancements for precision breeding and identifies key physiological and morphological markers for salt tolerance improvement in eggplant. Full article
(This article belongs to the Special Issue Recent Advances in Genetics, Breeding, and Biotechnology of Solanaceous Crops)
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