Multi-trait and multi-environment QTL analysis reveals the impact of seed colour on seed composition traits in Brassica napus

From National Research Council Canada

DOI	Resolve DOI: https://doi.org/10.1007/s11032-016-0521-8
Author	Search for: Yu, Bianyun¹ ; Search for: Boyle, Kerry¹ ; Search for: Zhang, Wentao¹ ; Search for: Robinson, Stephen J.; Search for: Higgins, Erin; Search for: Ehman, Lanette¹ ; Search for: Relf-eckstein, Jo-anne; Search for: Rakow, Gerhard; Search for: Parkin, Isobel A. P.; Search for: Sharpe, Andrew G.¹ ; Search for: Fobert, Pierre R.¹
Name affiliation	National Research Council Canada. Aquatic and Crop Resource Development
Format	Text
Type	Article
Journal title	Molecular Breeding
ISSN	1380-3743 1572-9788
Volume	36
Issue	8
Article number	111
Subject	brassica napus; seed colour; seed composition; QTLMulti-trait; multi-environment
Abstract	Brassica napus seed composition traits (fibre, protein, oil and fatty acid profiles), seed colour and yield-associated traits are regulated by a complex network of genetic factors. Although previous studies have attempted to dissect the underlying genetic basis for these traits, a more complete picture of the available quantitative trait loci (QTL) variation and any interaction between the different traits is required. In this study, QTL mapping for eleven seed composition traits, seed colour and a yield-related trait (TSW) was conducted in a spring-type canola-quality B. napus doubled haploid (DH) population from a cross between black-seeded (DH12075) and yellow-seeded (YN01-429) lines across five environments. A major QTL associated with fibre traits (acid detergent fibre, acid detergent lignin and neutral detergent fibre) and seed colour (whiteness index) was mapped on chromosome N9 across the five environments. Multi-trait analysis identified QTL which had pleiotropic effect for seed colour and other composition traits. Multi-environment analysis revealed genetic (QTL) × environment effects on most QTL. These findings provide a more detailed insight into the complex QTL networks controlling seed composition and yield-associated traits in canola-quality B. napus.
Publication date	2016-07-22
Publisher	Springer
Language	English
Peer reviewed	Yes
NRC number	NRC-ACRD_56298
NPARC number	23001054
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Record identifier	bbfc7abb-5b77-4d55-a37a-85d08ea6b340
Record created	2016-12-06
Record modified	2016-12-06

Date modified:: 2019-02-23

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