Genetic and Agro-morphological diversity in global barley ( Hordeum vulgare L.) collection at ICARDA
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RESEARCH ARTICLE
Genetic and Agro-morphological diversity in global barley (Hordeum vulgare L.) collection at ICARDA Swati Verma . Shikha Yashveer . Sajid Rehman . Sanjaya Gyawali . Yogender Kumar . Shiaoman Chao . Ashutosh Sarker . Ramesh Pal Singh Verma
Received: 18 March 2020 / Accepted: 5 November 2020 Ó Springer Nature B.V. 2020
Abstract Heat stress at later growth stage is one of the major limitations in achieving potential yield in barley. Incorporation of heat tolerance in the variety development process is an essential task that breeders would like to achieve by exploring new sources of genetic variability and their utilization. A better understanding of genetic variation in existing genotypes under heat stress is required to produce high yielding varieties with improved heat tolerance. An association mapping panel 2017 (AM2017), Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10722-020-01063-7) contains supplementary material, which is available to authorized users. S. Verma S. Yashveer Y. Kumar Chaudhary Charan Singh (CCS) Haryana Agricultural University, Hisar, India e-mail: [email protected] S. Yashveer e-mail: [email protected] Y. Kumar e-mail: [email protected]
comprising of 316 genotypes, was evaluated under timely and late sown (heat stress) conditions for two consecutive crop seasons at Hisar in India during 2017–2019. Eight agro-morphological traits, mainly contributing to yield, were considered agro-morphological diversity study. Genetic diversity and population structure were explored by using the 50 K iSelect Illumina Barley SNP array. A set of 36,793 SNP markers, covering a genetic distance of 991.82 cM with an average marker density of 37.09 SNPs/cM, was obtained after quality filtration. The gene diversity (GD) and Polymorphic Information Content (PIC) at genome level was 0.362 and 0.289, respectively. In AM2017, two subpopulations were observed mainly A. Sarker e-mail: [email protected] R. P. S. Verma e-mail: [email protected] S. Gyawali Mount Vernon Northwestern Washington Research & Extension Center, Washington State University, 16650 State Route 536, Mount Vernon WA98273, USA
S. Rehman S. Gyawali (&) A. Sarker R. P. S. Verma Biodiversity and Crop Improvement Program, International Center for Agricultural Research in the Dry Areas (ICARDA), Rabat, Morocco e-mail: [email protected]
S. Chao United State Department of Agriculture, (USDA)-ARS, Fargo, ND, USA e-mail: [email protected]
S. Rehman e-mail: [email protected]
R. P. S. Verma Indian Institute of Wheat and Barley Research (IIWBR), Indian Council of Agricultural Research (ICAR), Karnal, Haryana, India
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Genet Resour Crop Evol
due to the row types. Principal component analysis of agro-morphological traits revealed that days to heading and maturity along with spike length, spikelet number per spike and grain yield per plot were the most important traits in timely and late sown condi
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