Identification of quantitative trait loci associated with low boron stress that regulate root and shoot growth in Brassica napus seedlings
Identification of quantitative trait loci associated with low boron stress that regulate root and shoot growth in Brassica napus seedlings
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鉴定与低硼胁迫相关的调节甘蓝型油菜幼苗根和芽生长的数量性状位点
DOI：
10.1007/s11032-011-9629-z
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发表时间：
2012-06
影响因子：
3.1
通讯作者：
Meng Jinling
中科院分区：
文献类型：
--
作者：
Li Ruiyuan;Long Yan;Xu Fangsen;Meng Jinling
甘蓝型油菜（Brassica napus）是世界上最重要的油料作物之一，也是一种很有前途的生物燃料。在热带和亚热带地区，硼（B）缺乏是限制芸苔属作物产量的主要因素。在利用水培的实验中评估了B对双单倍体（DH）群体中根和芽生长调节的影响。在正常和低B浓度下，感兴趣的性状表现出很强的遗传变异性。对7个植物生长参数进行了QTL分析，包括初生根长（IPRL）、地上部干重（SDW）、根干重（RDW）、RDW/SDW（R/S）、地上部B积累量（SBA）、根B积累量（RBA）和RBA/SBA [（R/S）BA]。在正常B水平下共检测到27个QTL，其中IPRL 4个，SDW 7个，RDW 3个，R/S 2个，SBA 6个，RBA 2个，（R/S）BA 3个。在低B条件下，共检测到18个QTL，其中IPRL 4个，SDW 3个，RDW 2个，R/S 2个，SBA 5个，RBA 1个，（R/S）BA 1个。检测到3个适应性QTL：1个A_IPRL和2个A_SDW。在低和正常B下均未检测到推定的QTL。B-相关基因进行了计算机作图，并将其位置与QTL进行了比较。
Brassica napus (Brassicaceae) is among the most important oil crops and a promising biofuel. In the tropics and subtropics, boron (B) deficiency is a major factor limiting Brassica yields. The effect of B on the regulation of root and shoot growth in a doubled haploid (DH) population was evaluated in experiments that utilized hydroponic culture. Strong genetic variability for traits of interest at normal and low B concentrations was demonstrated. Quantitative trait loci (QTL) were analyzed for seven plant growth parameters: increment of primary root length (IPRL), shoot dry weight (SDW), root dry weight (RDW), ratio of RDW to SDW (R/S), shoot B accumulation (SBA), root B accumulation (RBA), and ratio of RBA to SBA [(R/S)BA] in the population. Twenty-seven QTL were detected at normal B levels: four for IPRL, seven for SDW, three for RDW, two for R/S, six for SBA, two for RBA, and three for (R/S)BA. At low B, 18 QTL were detected: four for IPRL, three for SDW, two for RDW, two for R/S, five for SBA, one for RBA, and one for (R/S)BA. Three QTL for adaptability were detected: one A_IPRL and two A_SDW. No putative QTL was detected at both low and normal B. B-related genes were mapped in silico and their locations compared with the QTL identified.
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DOI：
--
发表时间：
2002
期刊：
Yi chuan xue bao = Acta genetica Sinica
影响因子：
--
作者：
Li-Xia Wang;Jianwei Zhao;Fang-Sen Xu;Ren-Hu Liu;J. Meng
通讯作者：
Li-Xia Wang;Jianwei Zhao;Fang-Sen Xu;Ren-Hu Liu;J. Meng
DOI：
--
发表时间：
2011
期刊：
--
影响因子：
--
作者：
Shengchu Wang;C. Basten;Z. Zeng
通讯作者：
Shengchu Wang;C. Basten;Z. Zeng
影响因子：
7.4
作者：
Kobayashi, M;Matoh, T;Azuma, J
通讯作者：
Azuma, J
DOI：
--
发表时间：
2004
期刊：
Chinese Journal of Oil Crop Scieves
影响因子：
--
作者：
S. Lei;Nian Fu-zhao;Z. Hua;Xue Fangsen;Meng Jin-ling
通讯作者：
S. Lei;Nian Fu-zhao;Z. Hua;Xue Fangsen;Meng Jin-ling
影响因子：
4.9
作者：
J. Stangoulis;M. Webb;R. Graham
通讯作者：
J. Stangoulis;M. Webb;R. Graham