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Trait phenotyping and genic/random SSR markers characterization for breeding early maturing wheat’s for Western-Himalayas

Creator: Shafi, S.
Creator: Tahir, M.
Creator: Khan, M.A.
Creator: Bhat, M.
Creator: Kumar, U.
Creator: Kumar, S.
Creator: Mir, R.
Year: 2021
URI: https://hdl.handle.net/10883/21792
Language: English
Publisher: Research Square
Copyright: CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose
Type: Article
Place of Publication: USA
DOI: 10.21203/rs.3.rs-217390/v1
Keywords: Simple Sequence Repeats
Keywords: Allelic Diversity
Keywords: Bi-Parental Mapping
Description: The study involves evaluation of 96 wheat genotypes for early maturity and related traits and molecular characterization of trait specific candidate genotypes using 26 (20 random and 6 genic) SSR markers. Trait characterization revealed significant variation for early maturity and related traits. The analysis of genotypic data of 26 markers led to the detection of 166 alleles ranging from 2 to 8 alleles with an average of 3.8 alleles per locus. Separate analysis of genotypic data of 20 random and 06 trait specefic markers led to the identification of 118 and 51 alleles, respectively. Sub-population-wise allelic diversity in early and late maturing populations could detect a total of 167 and 144 alleles, respectively. Higher gene diversity was detected in early maturing sub-population (0.135) when compared to late maturing sub-population (0.071). Single marker analysis (SMA) revealed significant association of 05 random and 02 trait specific markers already reported for early maturity. Therefore, two trait specific markers (Xwmc1 and Xgwm271) have been validated during the present study and contributed 21.36% and 10.94% phenotypic variation for early maturity, respectively. In order to breed for early maturity for Western-Himalayas, F2 segregating populations were also developed by making crosses among spring × spring and spring × winter wheat genotypes and several important recombinants/ segregants for early maturity and related traits were identified. Overall, the findings of the present study will prove useful in future wheat improvement programs leading to development of early maturing wheat varieties.
Agrovoc: SOFT WHEAT
Agrovoc: EARLY MATURATION
Agrovoc: GENETIC MARKERS
Agrovoc: ALLELES
Agrovoc: MICROSATELLITES
ISSN: 2693-5015
Journal: Research Square


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  • Wheat
    Wheat - breeding, phytopathology, physiology, quality, biotech

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