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Characterization of the genetic basis of local adaptation of wheat landraces from Iran and Pakistan using genome-wide association study

Creator: Hanif, U.
Creator: Alipour, H.
Creator: Gul Kazi, A.
Creator: Jing Li
Creator: Darvishzadeh, R.
Creator: Amir, R.
Creator: Munir, F.
Creator: Ilyas, M.K.
Creator: Ghafoor, A.
Creator: Siddiqui, S.U.
Creator: St. Amand, P.
Creator: Bernado, A.
Creator: Guihua Bai
Creator: Sonder, K.
Creator: Rasheed, A.
Creator: He Zhonghu
Creator: Huihui Li
Year: 2021
URI: https://hdl.handle.net/10883/21575
Language: English
Publisher: Wiley
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
Country focus: Iran
Country focus: Pakistan
Place of Publication: Madison, WI (USA)
Volume: In press
DOI: 10.1002/tpg2.20096
Description: Characterization of genomic regions underlying adaptation of landraces can reveal a quantitative genetics framework for local wheat (Triticum aestivum L.) adaptability. A collection of 512 wheat landraces from the eastern edge of the Fertile Crescent in Iran and Pakistan were genotyped using genome-wide single nucleotide polymorphism markers generated by genotyping-by-sequencing. The minor allele frequency (MAF) and the heterozygosity (H) of Pakistani wheat landraces (MAF = 0.19, H = 0.008) were slightly higher than the Iranian wheat landraces (MAF = 0.17, H = 0.005), indicating that Pakistani landraces were slightly more genetically diverse. Population structure analysis clearly separated the Pakistani landraces from Iranian landraces, which indicates two separate adaptability trajectories. The large-scale agro-climatic data of seven variables were quite dissimilar between Iran and Pakistan as revealed by the correlation coefficients. Genome-wide association study identified 91 and 58 loci using agroclimatic data, which likely underpin local adaptability of the wheat landraces from Iran and Pakistan, respectively. Selective sweep analysis identified significant hits on chromosomes 4A, 4B, 6B, 7B, 2D, and 6D, which were colocalized with the loci associated with local adaptability and with some known genes related to flowering time and grain size. This study provides insight into the genetic diversity with emphasis on the genetic architecture of loci involved in adaptation to local environments, which has breeding implications.
Agrovoc: WHEAT
Agrovoc: LAND RACES
Agrovoc: ADAPTATION
Agrovoc: GENOMICS
ISSN: 1940-3372
Journal: The Plant Genome


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This item appears in the following Collection(s)

  • Genetic Resources
    Genetic Resources including germplasm collections, wild relatives, genotyping, genomics, and IP
  • Socioeconomics
    Including topics such as farming systems, markets, impact & targeting, innovations, and GIS
  • Wheat
    Wheat - breeding, phytopathology, physiology, quality, biotech

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