Genetic variants associated with the root system architecture of oilseed rape (Brassica napus L.) under contrasting phosphate supply.
Genetic variants associated with the root system architecture of oilseed rape (Brassica napus L.) under contrasting phosphate supply.
复制标题
磷酸盐供应对比下与油菜 (Brassica napus L.) 根系结构相关的遗传变异
DOI：
10.1093/dnares/dsx013
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发表时间：
2017-08-01
期刊：
影响因子：
--
通讯作者：
Shi L
中科院分区：
文献类型：
--
作者：
Wang X;Chen Y;Thomas CL;Ding G;Xu P;Shi D;Grandke F;Jin K;Cai H;Xu F;Yi B;Broadley MR;Shi L
摘要培育具有理想根系构型的作物以利于磷的高效吸收是减少磷肥使用量的重要策略。为了研究导致根系结构变化的遗传变异，在低磷和高磷环境下，用60 K Brassica Infinium SNP阵列对405个油菜品种进行基因分型。在不同磷水平下，共有285个单核苷酸多态性与根系构型性状相关。九个单核苷酸多态性证实了以前的连锁分析的根系结构数量性状基因座的BnaTNDH人口。A3上的一个单核苷酸多态性峰区域与所有根系构型性状相关，并与低磷条件下的主根长数量性状位点共定位。两个以上的单核苷酸多态性峰A5低磷根干重检测在两个生长系统和共定位的数量性状基因座相同的性状。在A3上鉴定的候选基因形成单倍型“BnA 3 Hap”，这对于理解磷/根系互作和将其纳入甘蓝型油菜育种计划将是重要的。
Abstract Breeding crops with ideal root system architecture for efficient absorption of phosphorus is an important strategy to reduce the use of phosphate fertilizers. To investigate genetic variants leading to changes in root system architecture, 405 oilseed rape cultivars were genotyped with a 60K Brassica Infinium SNP array in low and high P environments. A total of 285 single-nucleotide polymorphisms were associated with root system architecture traits at varying phosphorus levels. Nine single-nucleotide polymorphisms corroborate a previous linkage analysis of root system architecture quantitative trait loci in the BnaTNDH population. One peak single-nucleotide polymorphism region on A3 was associated with all root system architecture traits and co-localized with a quantitative trait locus for primary root length at low phosphorus. Two more single-nucleotide polymorphism peaks on A5 for root dry weight at low phosphorus were detected in both growth systems and co-localized with a quantitative trait locus for the same trait. The candidate genes identified on A3 form a haplotype ‘BnA3Hap’, that will be important for understanding the phosphorus/root system interaction and for the incorporation into Brassica napus breeding programs.
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DOI：
10.1093/dnares/dsu002
发表时间：
2014-08
期刊：
DNA research : an international journal for rapid publication of reports on genes and genomes
影响因子：
--
作者：
Li F;Chen B;Xu K;Wu J;Song W;Bancroft I;Harper AL;Trick M;Liu S;Gao G;Wang N;Yan G;Qiao J;Li J;Li H;Xiao X;Zhang T;Wu X
通讯作者：
Wu X
影响因子：
7.3
作者：
Reymond, M;Svistoonoff, S;Desnos, T
通讯作者：
Desnos, T
影响因子：
30.8
作者：
Nordborg, M;Borevitz, JO;Weigel, D
通讯作者：
Weigel, D
影响因子：
5.6
作者：
Bus A;Körber N;Parkin IA;Samans B;Snowdon RJ;Li J;Stich B
通讯作者：
Stich B
影响因子：
6.9
作者：
Hammond, John P.;Broadley, Martin R.;Greenwood, Duncan J.
通讯作者：
Greenwood, Duncan J.