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Journal article
Dissection of the Genetic Basis of Yield-Related Traits in the Chinese Peanut Mini-Core Collection Through Genome-Wide Association Studies
Frontiers in plant science, Vol.12, 637284
2021
PMID: 34093605
Abstract
Peanut is an important legume crop worldwide. To uncover the genetic basis of yield features and assist breeding in the future, we conducted genome-wide association studies (GWAS) for six yield-related traits of the Chinese peanut mini-core collection. The seed (pod) size and weight of the population were investigated under four different environments, and these traits showed highly positive correlations in pairwise combinations. We sequenced the Chinese peanut mini-core collection using genotyping-by-sequencing approach and identified 105,814 high-quality single-nucleotide polymorphisms (SNPs). The population structure analysis showed essentially subspecies patterns in groups and obvious geographical distribution patterns in subgroups. A total of 79 significantly associated loci (P < 4.73 x 10(-7)) were detected for the six yield-related traits through GWAS. Of these, 31 associations were consistently detected in multiple environments, and 15 loci were commonly detected to be associated with multiple traits. Two major loci located on chromosomal pseudomolecules A06 and A02 showed pleiotropic effects on yield-related traits, explaining similar to 20% phenotypic variations across environments. The two genomic regions were found 46 putative candidate genes based on gene annotation and expression profile. The diagnostic marker for the yield-related traits from non-synonymous SNP (Aradu-A06-107901527) was successfully validated, achieving a high correlation between nucleotide polymorphism and phenotypic variation. This study provided insights into the genetic basis of yield-related traits in peanut and verified one diagnostic marker to facilitate marker-assisted selection for developing high-yield peanut varieties.
Details
- Title
- Dissection of the Genetic Basis of Yield-Related Traits in the Chinese Peanut Mini-Core Collection Through Genome-Wide Association Studies
- Authors/Creators
- Xiaojing Zhou - Oil Crops Research InstituteJianbin Guo - Oil Crops Research InstituteManish K. Pandey - International Crops Research Institute for the Semi-Arid TropicsRajeev K. Varshney - International Crops Research Institute for the Semi-Arid TropicsLi Huang - Oil Crops Research InstituteHuaiyong Luo - Oil Crops Research InstituteNian Liu - Oil Crops Research InstituteWeigang Chen - Oil Crops Research InstituteYong Lei - Oil Crops Research InstituteBoshou Liao - Oil Crops Research InstituteHuifang Jiang - Oil Crops Research Institute
- Publication Details
- Frontiers in plant science, Vol.12, 637284
- Publisher
- Frontiers Media S.A.
- Number of pages
- 14
- Grant note
- 31871666 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC) NCGRC2020-014 / National Crop Germplasm Resources Center 1610172016002 / Special Fund for Basic Scientific Research of Central Public Welfare Research Institutes 2020NWB033 / National Program for Crop Germplasm Protection of China
- Identifiers
- 991005609297307891
- Copyright
- © 2021 Zhou et al.
- Murdoch Affiliation
- Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science