...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of genetics >Phosphate acquisition efficiency and phosphate starvation tolerance locus (PSTOL1) in rice
【24h】

Phosphate acquisition efficiency and phosphate starvation tolerance locus (PSTOL1) in rice

机译：水稻中磷的吸收效率和耐磷饥饿位点（PSTOL1）

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Phosphate availability is a major factor limiting tillering, grain filling vis-??-vis productivity of rice. Rice is often cultivated in soil like red and lateritic or acid, with low soluble phosphate content. To identify the best genotype suitable for these types of soils, P acquisition efficiency was estimated from 108 genotypes. Gobindabhog, Tulaipanji, Radhunipagal and Raghusail accumulated almost equal amounts of phosphate even when they were grown on P-sufficient soil. Here, we have reported the presence as well as the expression of a previously characterized rice gene, phosphate starvation tolerance locus (PSTOL1) in a set of selected genotypes. Two of four genotypes did not show any detectable expression but carried the gene. One mega cultivar, Swarna did not possess this gene but showed high P-deficiency tolerance ability. Increase of root biomass, not length, in P-limiting situations might be considered as one of the selecting criteria at the seedling stage. Neither the presence of PSTOL1 gene nor its closely-linked SSR RM1261, showed any association with P-deficiency tolerance among the 108 genotypes. Not only this, but the presence of PSTOL1 in recombinant inbred line (RIL) developed from a cross between Gobindabhog and Satabdi, also did not show any linkage with P-deficiency tolerance ability. Thus, before considering PSTOL1 gene in MAB, its expression and role in P-deficiency tolerance in the donor parent must be ascertained.
机译：磷酸盐的可用性是限制水稻分,、籽粒相对于稻米生产力的主要因素。水稻通常种植在红色，红土或酸性土壤中，可溶性磷酸盐含量低。为了确定最适合这些土壤类型的基因型，从108个基因型中估算了磷的获取效率。即使Gobindabhog，Tulaipanji，Radhunipagal和Raghusail在磷充足的土壤上生长，其磷酸盐的累积量也几乎相等。在这里，我们已经报道了一组选定的基因型中先前表征的水稻基因磷酸盐饥饿耐受位点（PSTOL1）的存在和表达。四种基因型中的两种没有显示任何可检测的表达，但带有该基因。斯沃纳（Swarna）是一个大型品种，不具备此基因，但表现出很高的P缺乏耐受性。在磷限制条件下，根系生物量的增加而不是长度的增加可能被视为苗期的选择标准之一。 PSTOL1基因及其紧密连接的SSR RM1261的存在均未显示与108个基因型中的P缺乏耐受性相关。不仅如此，而且从Gobindabhog和Satabdi杂交得到的重组自交系（RIL）中PSTOL1的存在，也没有显示出与P缺乏耐受能力的任何联系。因此，在考虑MAB中的PSTOL1基因之前，必须确定其在供体亲本中的表达及其在P缺乏耐受性中的作用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号