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The Genetic Improvement of Barley
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The Genetic Improvement of Barley

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Genetics, Genomics and Biotechnology".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1874

Special Issue Editors

Dr. Feifei Wang

E-Mail Website
Guest Editor
Key Laboratory of Plant Functional Genomics of the Ministry of Education, Agricultural College of Yangzhou University, Yangzhou 225009, China
Interests: barley breeding; abiotic stress; gene mapping
Special Issues, Collections and Topics in MDPI journals
Dr. Sripada Udupa

E-Mail Website
Guest Editor
International Center for Agriculture Research in Dry Areas (ICARDA), Rue Hafiane Chekaoui, P.O. Box 6299, Rabat 10000, Morocco
Interests: barley; genetic diversity; plant biotechnology; plant genetics

Special Issue Information

Dear Colleagues,

A recent climate model predicts that global climate change is expected to increase the frequency and severity of extreme weather events in many regions worldwide, resulting in substantial crop yield losses and jeopardizing food security. A key step in resolving this problem is to breed crops that carry diverse resistance genes. Barley (Hordeum vulgare L.) is mainly used in feed, malt production, and food and has genes that allow wide environmental adaptability and stress resistance. This Special Issue of Plants will focus on the exploration of valuable genetic diversity, the identification of functional genes with potential significance, and genome-scale breeding technologies in barley.

Dr. Feifei Wang
Dr. Sripada Mahabala Udupa
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 100 words) can be sent to the Editorial Office for announcement on this website.

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. Plants is an international peer-reviewed open access semimonthly 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 2700 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

  • barley
  • abiotic and biotic stress
  • genetic diversity
  • plant breeding

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Published Papers (2 papers)

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Research

18 pages, 3297 KiB  
Article
Comprehensive Physio-Biochemical Evaluation Reveals Promising Genotypes and Mechanisms for Cadmium Tolerance in Tibetan Hull-Less Barley
by Md Rafat Al Foysal, Cheng-Wei Qiu, Jakkrit Sreesaeng, Saad Elhabashy, Delara Akhter, Shuo Zhang, Shou-Heng Shi and Feibo Wu
Plants 2024, 13(24), 3593; https://doi.org/10.3390/plants13243593 - 23 Dec 2024
Viewed by 561
Abstract
Cadmium (Cd) toxicity in agricultural soil is increasing globally and significantly impacts crop production and food safety. Tibetan hull-less barley (Hordeum vulgare L. var. nudum), an important staple food and economic crop, exhibits high genetic diversity and is uniquely adapted to [...] Read more.
Cadmium (Cd) toxicity in agricultural soil is increasing globally and significantly impacts crop production and food safety. Tibetan hull-less barley (Hordeum vulgare L. var. nudum), an important staple food and economic crop, exhibits high genetic diversity and is uniquely adapted to the harsh conditions of the Qinghai–Tibet Plateau. This study utilized hydroponic experiments to evaluate the genotypic differences in Cd tolerance among 71 Tibetan hull-less barley genotypes. Physiological assessments revealed significant reductions in various growth parameters under Cd stress compared to normal conditions: soil–plant analysis development (SPAD) value, shoot height, root length, shoot and root fresh weight, shoot and root dry weight, of 11.74%, 39.69%, 48.09%, 52.88%, 58.39%, 40.59%, and 40.52%, respectively. Principal component analysis (PCA) revealed key traits contributing to Cd stress responses, explaining 76.81% and 46.56% of the variance in the preliminary and secondary selection. The genotypes exhibited varying degrees of Cd tolerance, with X178, X192, X215, X140, and X162 showing high tolerance, while X38 was the most sensitive based on the integrated score and PCA results. Validation experiments confirmed X178 as the most tolerant genotype and X38 as the most sensitive, with observed variations in morphological, physiological, and biochemical parameters, as well as mineral nutrient responses to Cd stress. Cd-tolerant genotypes exhibited higher chlorophyll content, net photosynthesis rates, and effective photochemical capacity of photosystem II, along with an increased Cd translocation rate and reduced oxidative stress. This was accompanied by elevated activities of antioxidant enzymes, including superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT), indicating a robust stress response mechanism. These findings could facilitate the development of high-tolerance cultivars, with X178 as a promising candidate for further research and cultivation in Cd-contaminated soils. Full article
(This article belongs to the Special Issue The Genetic Improvement of Barley)
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11 pages, 4753 KiB  
Article
Development and Characterization of a New TILLING Population for Forward and Reverse Genetics in Barley (Hordeum vulgare L.)
by Feifei Wang, Liang Zhu, Zhenxiang Zhou, Yangyang Gu, Baojian Guo, Chao Lv, Juan Zhu, Xiaohui Liu and Rugen Xu
Plants 2024, 13(17), 2490; https://doi.org/10.3390/plants13172490 - 5 Sep 2024
Viewed by 872
Abstract
Mutagenesis is an important tool in crop improvement and free of the regulatory restrictions imposed on genetically modified organisms. Barley (Hordeum vulgare L.) is a diploid species with a genome smaller than those of other members of the Triticeae crops, making it [...] Read more.
Mutagenesis is an important tool in crop improvement and free of the regulatory restrictions imposed on genetically modified organisms. Barley (Hordeum vulgare L.) is a diploid species with a genome smaller than those of other members of the Triticeae crops, making it an attractive model for genetic studies in Triticeae crops. In this study, we report an ethyl methane sulfonate (EMS)-mutagenized population in the Chinese barley landrace TX9425, which is tolerant to both abiotic and biotic stress. A TILLING (Targeting Induced Locus Lesion in Genomes) population consisting of 2000 M2 lines was also constructed based on the CEL I enzyme with subsequent polyacrylamide electrophoresis, which decreased the cost and labor investment. The mutant phenotypes of the M2 and M3 generations were scored and revealed the presence of a wide spectrum of morphological diversity. The population was evaluated by screening for induced mutations in five genes of interest. A detailed analysis was performed for the HvGLR3.5 gene and three mutations were identified by screening in 2000 M2 lines. Two of three mutations displayed tuft and yellow striped leaves compared to the wild type. Altogether, our study shows the efficiency of screening and the great potential of the new TILLING population for genetic studies in the barley crop model system. Full article
(This article belongs to the Special Issue The Genetic Improvement of Barley)
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