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Evaluation of resistance to Verticillium wilt in Gossypium hirsutum-Gossypium arboreum introgression lines and identification of putative resistance genes using RNA-seq.
Plant Sci
December 2024
State Key Laboratory of Crop Genetics & Germplasm Enhancement and Utilization, Collaborative Innovation Center for Modern Crop Production co-sponsored by Jiangsu Province and Ministry of Education, Cotton Germplasm Enhancement and Application Engineering Research Center (Ministry of Education), College of Agriculture, Nanjing Agricultural University, Nanjing, Jiangsu 210095, PR China. Electronic address:
Verticillium wilt (VW), a fungal disease caused by Verticillium dahliae (Vd), is one of the most destructive threats to cotton production. Moreover, widely cultivated upland cotton (Gossypium hirsutum, 2n = 4x = AADD = 52) often demonstrates low resistance to Vd. In contrast, G.
View Article and Find Full Text PDFIntrogression and Mapping of Cotton Leaf Curl Disease (CLCuD) Resistance from Wild Kearney into Upland Cotton (. L.).
Plant Dis
October 2024
ICRISAT, Patancheru, Telangana, India;
Cotton leaf curl disease (CLCuD), caused by the whitefly transmitted geminivirus complex (Cotton leaf curl virus - CLCuV and their satellite molecules), is a serious threat to successful upland cotton production in northwest India, Pakistan, and China. The disease causes significant losses in fibre yield and the quality of cotton. Owing to the regular emergence of resistance breaking strains of CLCuV, all the previously available CLCuD resistant germplasms of upland cotton have become compromised and none of the extant upland cotton cultivars is resistant to this disease.
View Article and Find Full Text PDFNatural variations in the Cis-elements of GhRPRS1 contributing to petal colour diversity in cotton.
Plant Biotechnol J
December 2024
State Key Laboratory of Cotton Bio-breeding and Integrated Utilization, Zhengzhou University, Zhengzhou, China.
The cotton genus comprises both diploid and allotetraploid species, and the diversity in petal colour within this genus offers valuable targets for studying orthologous gene function differentiation and evolution. However, the genetic basis for this diversity in petal colour remains largely unknown. The red petal colour primarily comes from C, G, K, and D genome species, and it is likely that the common ancestor of cotton had red petals.
View Article and Find Full Text PDFCo-Expression Network Analysis and Introgressive Gene Identification for Fiber Length and Strength Reveal Transcriptional Differences in 15 Cotton Chromosome Substitution Segment Lines and Their Upland and Sea Island Parents.
Plants (Basel)
August 2024
National Key Laboratory of Cotton Bio-Breeding and Integrated Utilization, Zhengzhou University, Zhengzhou 450001, China.
Fiber length (FL) and strength (FS) are the core indicators for evaluating cotton fiber quality. The corresponding stages of fiber elongation and secondary wall thickening are of great significance in determining FL and FS formation, respectively. QTL mapping and high-throughput sequencing technology have been applied to dissect the molecular mechanism of fiber development.
View Article and Find Full Text PDFGenetic Regulatory Perturbation of Gene Expression Impacted by Genomic Introgression in Fiber Development of Allotetraploid Cotton.
Adv Sci (Weinh)
October 2024
National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China.
Article Synopsis
- Interspecific genomic introgression plays a crucial role in evolution by introducing genetic diversity and aiding adaptation, particularly in plants like cotton.
- The study focuses on exploring how gene flow between two allopolyploid cotton species affects gene expression during fiber development, using a population of introgression lines derived from two cotton species.
- By analyzing transcriptomes and genomic variations, the research identifies regulatory changes linked to fiber quality, highlighting specific genes like GhFLAP1 that could be targeted in breeding programs for better cotton fibers.
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