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首页> 外文期刊>Journal of genetics >Mapping QTL controlling agronomic traits in a doubled haploid population of winter oilseed rape (Brassica napus L.)
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Mapping QTL controlling agronomic traits in a doubled haploid population of winter oilseed rape (Brassica napus L.)

机译：映射QTL控制冬季油菜（Brassica Napus L）的双倍单倍体群中的农艺性状

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摘要

Identification of superior alleles for agronomic traits in genetic resources of oilseed rape (Brassica napus L.) would be useful for improving the performance of locally adapted cultivars in Iran. The objective of the present work was to analyse the genetic variation and inheritance of important agronomic traits in a doubled haploid population derived from a cross between two German oilseed rape cultivars, Sansibar and Oase. Field experiments were performed in 2016-2017 with 200 doubled haploid lines and the parental genotypes applying an alpha-lattice design with two replicates. Phenological traits were recorded during the cultivation period and at maturity, seed yield, yield components and seed quality traits were determined. Significant genetic variation was found in most of the traits and heritabilities ranged from medium (48.5%) for days to end of flowering to high (92.6%) for oil content. A molecular marker linkage map was used to map 36 QTL for different traits on 17 linkage groups. Between three and four QTL were identified for each seed yield, seed weight, oil and protein content. Some of the plant material and positive QTL alleles identified for agronomic traits may be useful for improving those characters in locally adapted cultivars in Iran.
机译：鉴定油菜遗传资源遗传资源的农艺性状（Brassica Napus L.）的鉴定可用于改善伊朗本地适应品种的性能。本作工作的目的是分析衍生自两个德国油菜品种，桑巴尔和Oase之间的交叉的双倍单倍性群体中重要农艺性状的遗传变异和遗传。现场实验在2016-2017中进行，200个双倍单倍体线和应用α-晶格设计的父母基因型用两种重复。在培养期和成熟时记录酚类特征，确定了种子产量，产量组分和种子质量特征。在大多数特征和遗传学中发现了显着的遗传变异范围从培养基（48.5％）到开花到高（92.6％）的油含量。用于在17个连杆基团上映射36 QT1的不同性状的分子标记键。针对每种种子产率，种子重量，油和蛋白质含量鉴定在三到四个QT1之间。用于农艺性状的一些植物材料和阳性QTL等位基因可用于改善伊朗本地适应品种中的那些人物。

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