Seed longevity in oilseed rape (Brassica napus L.) - genetic variation and QTL mapping

被引：49

作者：

Nagel, Manuela ^{[1
]}

Rosenhauer, Maria ^{[1
]}

Willner, Evelin ^{[2
]}

Snowdon, Rod J. ^{[3
]}

Friedt, Wolfgang ^{[3
]}

Boerner, Andreas ^{[1
]}

机构：

[1] Leibniz Inst Plant Genet & Crop Plant Res IPK, Gatersleben, Germany

[2] Leibniz Inst Plant Genet & Crop Plant Res, Malchow Poel, Germany

[3] Univ Giessen, Dept Plant Breeding, Giessen, Germany

来源：

PLANT GENETIC RESOURCES-CHARACTERIZATION AND UTILIZATION | 2011年 / 9卷 / 02期

关键词：

Brassica napus L; ex situ genebank; quantitative trait loci; seed longevity; synteny; ARABIDOPSIS; DETERIORATION; GERMINATION;

D O I：

10.1017/S1479262111000372

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Although oilseed rape has become one of the most important oil crops in Europe, little is known regarding the viability of its seed under conditions of long-term storage. We report here an examination of oilseed rape seed longevity performed on a set of 42 accessions housed at the German ex situ genebank at IPK, Gatersleben. A comparison of germination between the accessions stored for 26 years showed that viability was in part genetically determined, since it ranged between 42 and 98%. An attempt was made to define the genetic basis of viability by subjecting a mapping population of doubled haploids to three artificial ageing treatments. Quantitative trait loci (QTL) were detected on six chromosomes: N6, N7, N8, N15, N16 and N18. The chromosomal locations of these QTL were compared with their syntenic regions in Arabidopsis thaliana in order to explore what genes might underlie genetic variation for longevity.

引用

页码：260 / 263

页数：4

共 22 条

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