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Genome‐wide expression quantitative trait locus analysis in a recombinant inbred line population for trait dissection in peanut

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Relation http://oar.icrisat.org/11372/
https://doi.org/10.1111/pbi.13246
doi:10.1111/pbi.13246
 
Title Genome‐wide expression quantitative trait locus analysis in a recombinant inbred line population for trait dissection in peanut
 
Creator Huang, L
Liu, X
Pandey, M K
Ren, X
Chen, H
Xue, X
Liu, N
Huai, D
Chen, Y
Zhou, X
Luo, H
Chen, W
Lei, Y
Liu, K
Xiao, Y
Varshney, R K
Liao, B
Jiang, H
 
Subject Groundnut
Genetics and Genomics
Legume Crops
 
Description The transcriptome connects genome to the gene function and ultimate phenome in biology. Sofar, transcriptomic approach was not used in peanut for performing trait mapping in bi-parentalpopulations. In this research, we sequenced the whole transcriptome in immature seeds in apeanut recombinant inbred line (RIL) population and explored thoroughly the landscape oftranscriptomic variations and its genetic basis. The comprehensive analysis identified total49 691 genes in RIL population, of which 92 genes followed a paramutation-like expressionpattern. Expression quantitative trait locus (eQTL) analysis identified 1207 local eQTLs and15 837 distant eQTLs contributing to the whole-genome transcriptomic variation in peanut.There were 94 eQTL hot spot regions detected across the genome with the dominance of distanteQTL. By integrating transcriptomic profile and annotation analyses, we unveiled a putativecandidate gene and developed a linked marker InDel02 underlying a major QTL responsible forpurple testa colour in peanut. Our result provided a first understanding of genetic basis of whole-genome transcriptomic variation in peanut and illustrates the potential of the transcriptome-aidapproach in dissecting important traits in non-model plants.
 
Publisher Wiley Open Access
 
Date 2019-09
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://oar.icrisat.org/11372/1/pbi.13246.pdf
Huang, L and Liu, X and Pandey, M K and Ren, X and Chen, H and Xue, X and Liu, N and Huai, D and Chen, Y and Zhou, X and Luo, H and Chen, W and Lei, Y and Liu, K and Xiao, Y and Varshney, R K and Liao, B and Jiang, H (2019) Genome‐wide expression quantitative trait locus analysis in a recombinant inbred line population for trait dissection in peanut. Plant Biotechnology Journal (TSI), 18 (3). pp. 779-790. ISSN 1467-7644