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Genetics and Breeding of Rice
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Genetics and Breeding of Rice

A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Plant Genetics and Genomics".

Deadline for manuscript submissions: 25 December 2024 | Viewed by 1616

Special Issue Editor

Dr. Banpu Ruan

E-Mail Website
Guest Editor
College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou 311121, China
Interests: rice; genetics; yield; quality; breeding

Special Issue Information

Dear Colleagues,

Rice (Oryza sativa) stands as a cornerstone of sustenance for more than half of the global population, underlining the imperative of its genetic enhancement for bolstering global food security. Recent years have witnessed remarkable advancements in comprehending rice genetics and deploying pioneering breeding methodologies to amplify its productivity, quality, and resilience. Central to contemporary rice genetic breeding are approaches that tap into the natural genetic reservoir through genome-wide association studies (GWASs) and quantitative trait locus (QTL) mapping. These endeavors pinpoint advantageous alleles governing pivotal agronomic traits like yield, disease resistance, and stress tolerance. Molecular markers extrapolated from these investigations play a pivotal role in expediting breeding schemes through marker-assisted selection (MAS) and genomic selection (GS), thereby optimizing breeding efficiency.

The trajectory of rice genetic improvement is further propelled by breakthroughs in genomic technologies, epitomized by high-throughput sequencing and CRISPR-Cas9 genome editing. These innovations accelerate the introgression of desired traits, expedite gene discovery, and facilitate allele mining, thus affording precise manipulation of the rice genome for the swift generation of superior cultivars.

Concurrently, there is a concerted effort directed toward augmenting the nutritional profile of rice by elevating its essential nutrient content while mitigating antinutritional factors. This endeavor assumes critical significance in combating malnutrition and dietary deficiencies, which are particularly prevalent in developing regions.

In essence, the fusion of diverse genetic resources with cutting-edge genomic tools propels the continuum of rice genetic enhancement, accentuating the imperative of sustainable strategies to navigate global challenges while catering to the dynamic demands of consumers worldwide.

Dr. Banpu Ruan
Guest Editor

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. Genes 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 2600 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

  • rice
  • genetics
  • yield
  • quality
  • breeding

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Published Papers (2 papers)

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Research

19 pages, 2950 KiB  
Article
Molecular Mapping and Transfer of Quantitative Trait Loci (QTL) for Sheath Blight Resistance from Wild Rice Oryza nivara to Cultivated Rice (Oryza sativa L.)
by Kumari Neelam, Sumit Kumar Aggarwal, Saundarya Kumari, Kishor Kumar, Amandeep Kaur, Ankita Babbar, Jagjeet Singh Lore, Rupinder Kaur, Renu Khanna, Yogesh Vikal and Kuldeep Singh
Genes 2024, 15(7), 919; https://doi.org/10.3390/genes15070919 - 14 Jul 2024
Viewed by 756
Abstract
Sheath blight (ShB) is the most serious disease of rice (Oryza sativa L.), caused by the soil-borne fungus Rhizoctonia solani Kühn (R. solani). It poses a significant threat to global rice productivity, resulting in approximately 50% annual yield loss. Managing [...] Read more.
Sheath blight (ShB) is the most serious disease of rice (Oryza sativa L.), caused by the soil-borne fungus Rhizoctonia solani Kühn (R. solani). It poses a significant threat to global rice productivity, resulting in approximately 50% annual yield loss. Managing ShB is particularly challenging due to the broad host range of the pathogen, its necrotrophic nature, the emergence of new races, and the limited availability of highly resistant germplasm. In this study, we conducted QTL mapping using an F2 population derived from a cross between a partially resistant accession (IRGC81941A) of Oryza nivara and the susceptible rice cultivar Punjab rice 121 (PR121). Our analysis identified 29 QTLs for ShB resistance, collectively explaining a phenotypic variance ranging from 4.70 to 48.05%. Notably, a cluster of four QTLs (qRLH1.1, qRLH1.2, qRLH1.5, and qRLH1.8) on chromosome 1 consistently exhibit a resistant response against R. solani. These QTLs span from 0.096 to 420.1 Kb on the rice reference genome and contain several important genes, including Ser/Thr protein kinase, auxin-responsive protein, protease inhibitor/seed storage/LTP family protein, MLO domain-containing protein, disease-responsive protein, thaumatin-like protein, Avr9/Cf9-eliciting protein, and various transcription factors. Additionally, simple sequence repeats (SSR) markers RM212 and RM246 linked to these QTLs effectively distinguish resistant and susceptible rice cultivars, showing great promise for marker-assisted selection programs. Furthermore, our study identified pre-breeding lines in the advanced backcrossed population that exhibited superior agronomic traits and sheath blight resistance compared to the recurrent parent. These promising lines hold significant potential for enhancing the sheath blight resistance in elite cultivars through targeted improvement efforts. Full article
(This article belongs to the Special Issue Genetics and Breeding of Rice)
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12 pages, 5214 KiB  
Article
Genome-Wide Identification and Bioinformatics Analysis of the FK506 Binding Protein Family in Rice
by Fanhao Nie, Minghao Wang, Linlin Liu, Xuefei Ma and Juan Zhao
Genes 2024, 15(7), 902; https://doi.org/10.3390/genes15070902 - 10 Jul 2024
Viewed by 529
Abstract
The FK506 Binding Protein (FKBP), ubiquitously present across diverse species, is characterized by its evolutionarily conserved FK506 binding domain (FKBd). In plants, evidence suggests that this gene family plays integral roles in regulating growth, development, and responses to environmental stresses. Notably, research on [...] Read more.
The FK506 Binding Protein (FKBP), ubiquitously present across diverse species, is characterized by its evolutionarily conserved FK506 binding domain (FKBd). In plants, evidence suggests that this gene family plays integral roles in regulating growth, development, and responses to environmental stresses. Notably, research on the identification and functionality of FKBP genes in rice remains limited. Therefore, this study utilized bioinformatic tools to identify 30 FKBP-encoding genes in rice. It provides a detailed analysis of their chromosomal locations, evolutionary relationships with the Arabidopsis thaliana FKBP family, and gene structures. Further analysis of the promoter elements of these rice FKBP genes revealed a high presence of stress-responsive elements. Quantitative PCR assays under drought and heat stress conditions demonstrated that genes OsFKBP15-2, OsFKBP15-3, OsFKBP16-3, OsFKBP18, and OsFKBP42b are inducible by these adverse conditions. These findings suggest a significant role for the rice FKBP gene family in stress adaptation. This research establishes a critical foundation for deeper explorations of the functional roles of the OsFKBP genes in rice. Full article
(This article belongs to the Special Issue Genetics and Breeding of Rice)
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