Species- and genome-wide dissection of the shoot ionome in Brassica napus and its relationship to seedling development.
Species- and genome-wide dissection of the shoot ionome in Brassica napus and its relationship to seedling development.
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DOI：
10.3389/fpls.2014.00485
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发表时间：
2014
影响因子：
5.6
通讯作者：
Stich B
中科院分区：
文献类型：
--
作者：
Bus A;Körber N;Parkin IA;Samans B;Snowdon RJ;Li J;Stich B
了解植物离子组的遗传基础对于理解营养物质运输和积累的控制至关重要。本研究的目的是（i）研究大量不同甘蓝型油菜的矿质营养浓度，（ii）描述地上部离子组与幼苗发育之间的关系，以及（iii）确定与地上部离子组变异相关的遗传区域。所研究的植物材料是由509个近交系组成的种质集，其通过6K单核苷酸多态性（SNP）阵列进行基因分型，并通过分析30天龄幼苗的芽中11种矿物质营养素的浓度进行表型。在矿物浓度，正相关，而矿物浓度主要是负相关，从早期的研究幼苗发育性状。在全基因组关联作图方法中，在校正多次测试后，在7个性状中共鉴定出29个显著相关的位点。该协会包括一个位点的铜，锰，锌的浓度上的染色体C3的影响，和一个遗传区域与多个协会的钠浓度上的染色体A9。该区域位于植物耐钠关键基因SOS1附近的一个关联热点内。
Knowing the genetic basis of the plant ionome is essential for understanding the control of nutrient transport and accumulation. The aim of this research was to (i) study mineral nutrient concentrations in a large and diverse set of Brassica napus, (ii) describe the relationships between the shoot ionome and seedling development, and (iii) identify genetic regions associated with variation of the shoot ionome. The plant material under study was a germplasm set consisting of 509 inbred lines that was genotyped by a 6K single nucleotide polymorphism (SNP) array and phenotyped by analyzing the concentrations of eleven mineral nutrients in the shoots of 30 days old seedlings. Among mineral concentrations, positive correlations were found, whereas mineral concentrations were mainly negatively correlated with seedling development traits from earlier studies. In a genome-wide association mapping approach, altogether 29 significantly associated loci were identified across seven traits after correcting for multiple testing. The associations included a locus with effects on the concentrations of Cu, Mn, and Zn on chromosome C3, and a genetic region with multiple associations for Na concentration on chromosome A9. This region was situated within an association hotspot close to SOS1, a key gene for Na tolerance in plants.
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影响因子：
5.4
作者：
HILL W G;ROBERTSON A
通讯作者：
ROBERTSON A
影响因子：
5.4
作者：
BERNARDO, R
通讯作者：
BERNARDO, R
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作者：
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通讯作者：
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作者：
Ford BA;Ernest JR;Gendall AR
通讯作者：
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