NDLI: Molecular mapping of Arabidopsis thaliana lipid-related orthologous genes in Brassica napus

Content Provider	Springer Nature Link
Author	Zhao, Jianyi Huang, Jixiang Chen, Fei Xu, Fei Ni, Xiyuan Xu, Haiming Wang, Yilong Jiang, Chonchon Wang, Hao Xu, Aixia Huang, Ruizhi Li, Dianrong Meng, Jinling
Copyright Year	2011
Abstract	Quantitative Trait Loci (QTL) for oil content has been previously analyzed in a SG-DH population from a cross between a Chinese cultivar and a European cultivar of Brassica napus. Eight QTL with additive and epistatic effects, and with environmental interactions were evaluated. Here we present an integrated linkage map of this population predominantly based on informative markers derived from Brassica sequences, including 249 orthologous A. thaliana genes, where nearly half (112) are acyl lipid metabolism related genes. Comparative genomic analysis between B. napus and A. thaliana revealed 33 colinearity regions. Each of the conserved A. thaliana segments is present two to six times in the B. napus genome. Approximately half of the mapped lipid-related orthologous gene loci (76/137) were assigned in these conserved colinearity regions. QTL analysis for seed oil content was performed using the new map and phenotypic data from 11 different field trials. Nine significant QTL were identified on linkage groups A1, A5, A7, A9, C2, C3, C6 and C8, together explaining 57.79% of the total phenotypic variation. A total of 14 lipid related candidate gene loci were located in the confidence intervals of six of these QTL, of which ten were assigned in the conserved colinearity regions and felled in the most frequently overlapped QTL intervals. The information obtained from this study demonstrates the potential role of the suggested candidate genes in rapeseed kernel oil accumulation.
Starting Page	407
Ending Page	421
Page Count	15
File Format	PDF
ISSN	00405752
Journal	Theoretical and Applied Genetics
Volume Number	124
Issue Number	2
e-ISSN	14322242
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-10-13
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biotechnology Biochemistry Plant Breeding/Biotechnology Agriculture Plant Genetics & Genomics Plant Biochemistry
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Biotechnology Agronomy and Crop Science

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