Selection footprints reflect genomic changes associated with breeding efforts in 56 cucumber inbred lines
Liu, Bin (China Agricultural University. Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops)
Guan, Dailu (Centre de Recerca en Agrigenòmica)
Zhai, Xuling (China Agricultural University. Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops)
Yang, Sen (China Agricultural University. Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops)
Xue, Shudan (China Agricultural University. Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops)
Chen, Shuying (China Agricultural University. Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops)
Huang, Jing (Purdue University. Department of Agronomy (USA))
Ren, Huazhong (China Agricultural University. Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops)
Liu, Xingwang (China Agricultural University. Beijing Key Laboratory of Growth and Developmental Regulation for Protected Vegetable Crops)

Date:	2019
Abstract:	Cucumber selective breeding over recent decades has dramatically increased productivity and quality, but the genomic characterizations and changes associated with this breeding history remain unclear. Here, we analyzed the genome resequencing data of 56 artificially selected cucumber inbred lines that exhibit various phenotypes to detect trait-associated sequence variations that reflect breeding improvement. We found that the 56 cucumber lines could be assigned to group 1 and group 2, and the two groups formed a distinctive genetic structure due to the breeding history involving hybridization and selection. Differentially selected regions were identified between group 1 and group 2, with implications for genomic-selection breeding signatures. These regions included known quantitative trait loci or genes that were reported to be associated with agronomic traits. Our results advance knowledge of cucumber genomics, and the 56 selected inbred lines could be good germplasm resources for breeding.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Agricultural genetics ; Plant breeding
Published in:	Horticulture research, Vol. 6 (November 2019) , art. 127, ISSN 2052-7276

DOI: 10.1038/s41438-019-0209-4
PMID: 31754434

9 p, 1.3 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CRAG (Centre for Research in Agricultural Genomics)
Articles > Research articles
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