Consensus genetic linkage map construction and QTL mapping for plant height-related traits in linseed flax (Linum usitatissimum L.).
Consensus genetic linkage map construction and QTL mapping for plant height-related traits in linseed flax (Linum usitatissimum L.).
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亚麻 (Linum usitatissimum L.) 株高相关性状的共有遗传连锁图谱构建和 QTL 定位
DOI：
10.1186/s12870-018-1366-6
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发表时间：
2018-08-07
影响因子：
5.3
通讯作者：
Pei X
中科院分区：
文献类型：
--
作者：
Zhang J;Long Y;Wang L;Dang Z;Zhang T;Song X;Dang Z;Pei X
背景：亚麻是一种重要的大田作物，可用于油料或纤维生产。株高和技术长度是亚麻的重要性状。对于亚麻籽亚麻，植物通常具有比纤维亚麻短的技术长度和植物高度。株高作为纤维亚麻和亚麻的重要农艺性状，常作为育种选择指标。然而，由于有限的技术和方法，一直很少有研究集中在发现的分子机制控制株高。结果：在这项研究中，两个相关的重组自交系（RIL）群体开发的亚麻籽和纤维亲本杂交和表型的株高和技术长度在四个环境中。基于两个RIL群体的共有连锁图谱构建使用通过测序基因分型（GBS）技术产生的SNP标记。在15个连锁群上共检测到4497个单核苷酸多态性（SNP）标记，平均标记密度为每2.71cM一个标记。利用这两个群体进行了株高和技术长度的数量性状基因座（QTL）定位分析。共检测到19个控制株高和技术长度的QTL。在MH群体中，共检测到8个株高和7个技术长度QTL，其中5个为两个性状的通用QTL。在PH群体中，共检测到6个株高和3个技术长度QTL。结论：本研究为亚麻和纤维亚麻株高相关性状的QTL图位克隆和分子标记辅助选择奠定了基础。
Background:Flax is an important field crop that can be used for either oilseed or fiber production. Plant height and technical length are important characters for flax. For linseed flax, plants usually have a short technical length and plant height than those for fiber flax. As an important agronomical character for fiber and linseed flax, plant height is usually a selection target for breeding. However, because of limited technologies and methods available, there has been little research focused on discovering the molecular mechanism controlling plant height.Results:In this study, two related recombinant inbred line (RIL) populations developed from crosses of linseed and fiber parents were developed and phenotyped for plant height and technical length in four environments. A consensus linkage map based on two RIL populations was constructed using SNP markers generated by genotyping by sequencing (GBS) technology. A total of 4497 single nucleotide polymorphism (SNP) markers were included on 15 linkage groups with an average marker density of one marker every 2.71 cM. Quantitative trait locus (QTL) mapping analysis was performed for plant height and technical length using the two populations. A total of 19 QTLs were identified for plant height and technical length. For the MH population, eight plant height QTLs and seven technical length QTLs were identified, five of which were common QTLs for both traits. For the PH population, six plant height and three technical length QTLs were identified. By comparing the QTLs and candidate gene information in the two population, two common QTLs and three candidate genes were discovered.Conclusions:This study provides a foundation for map-based cloning of QTLs and marker-assisted selection for plant height-related traits in linseed and fiber flax.
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影响因子：
3.7
作者：
Baird NA;Etter PD;Atwood TS;Currey MC;Shiver AL;Lewis ZA;Selker EU;Cresko WA;Johnson EA
通讯作者：
Johnson EA
影响因子：
5.4
作者：
Cloutier, Sylvie;Miranda, Evelyn;Ward, Kerry;Radovanovic, Natasa;Reimer, Elsa;Walichnowski, Andrzej;Datla, Raju;Rowland, Gordon;Duguid, Scott;Ragupathy, Raja
通讯作者：
Ragupathy, Raja
影响因子：
7
作者：
Miller, Michael R.;Dunham, Joseph P.;Johnson, Eric A.
通讯作者：
Johnson, Eric A.
中国亚麻的分布、栽培和利用的历史和植物学证据
影响因子：
2.5
作者：
Liu, Fei-Hu;Chen, Xia;Long, Chun-Lin
通讯作者：
Long, Chun-Lin
影响因子：
3.7
作者：
Elshire RJ;Glaubitz JC;Sun Q;Poland JA;Kawamoto K;Buckler ES;Mitchell SE
通讯作者：
Mitchell SE