Ghd7 is a negative regulator of zinc concentration in brown rice

被引：0
作者：
Mufid Alam
Yingnanjun Chen
Pingbo Li
Guangming Lou
Hao Zhou
Lei Wang
Rongjia Liu
Pingli Chen
Yin Zhou
Guanjun Gao
Dewei Tai
Xiaozhong Zhang
Yuqing He
机构：
[1] Huazhong Agricultural University,National Key Laboratory of Crop Genetic Improvement and National Center of Crop Molecular Breeding
[2] Anhui Academy of Agricultural Sciences,undefined
来源：
Molecular Breeding | 2020年 / 40卷
关键词：
Zinc concentration; Heading date; Quantitative trait loci;
D O I：
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摘要：
Zinc (Zn) is an essential micronutrient for human, and improving Zn concentration in rice could be a simple and effective way to solve insufficient Zn uptake from daily diet. In this study, a recombinant inbred line (RIL) population was developed from a commercial hybrid combination Wandao153, and subjected to quantitative trait loci (QTL) detection for Zn concentration in brown rice and heading date. Five QTL for Zn concentration and six for heading date were detected across 2 years, among which two QTL for Zn concentration and two for heading date were co-located on chromosome 7 and 8, respectively. The two co-located QTL on chromosome 7, qZn7 and qHd7, were likely to be Ghd7, a major gene for heading date and yield potential in rice. A combination of Zn concentration analysis and haplotype analysis of three pairs of genetic materials for Ghd7 revealed that it is a negative regulator of Zn concentration in brown rice. The other two co-located QTL on chromosome 8, qZn8 and qHd8, were likely to be Ghd8/DTH8, another major gene for heading date and yield potential in rice. These results could be of great use in genetic improvement of Zn concentration in brown rice.
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  • [1] Anuradha K(2012)Mapping QTLs and candidate genes for iron and zinc concentrations in unpolished rice of Madhukar×Swarna RILs Gene 508 233-240
  • [2] Agarwal S(2013)Detection and genotyping of restriction fragment associated polymorphisms in polyploid crops with a pseudo-reference sequence: a case study in allotetraploid BMC Genomics 14 346-425
  • [3] Rao YV(2006)Molecular mapping of quantitative trait loci for zinc toxicity tolerance in rice seedling ( Field Crop Res 95 420-16342
  • [4] Rao KV(2014) L.) P Natl Acad Sci USA 111 16337-299
  • [5] Viraktamath BC(2012), a major quantitative locus determining photoperiod sensitivity and regional adaptation in rice Plant Soil 361 291-80
  • [6] Sarla N(1999)Zinc deficiency and human health: etiology, health consequences, and future solutions Field Crop Res 60 57-2252
  • [7] Chen X(2016)Breeding for micronutrient density in edible portions of staple food crops: conventional approaches Theor Appl Genet 129 2241-1076
  • [8] Li XM(2009)Genetic control of flowering time in rice: integration of Mendelian genetics and genomics Genome Res 19 1068-39
  • [9] Zhang B(2012)High-throughput genotyping by whole-genome resequencing Nat Genet 44 32-232
  • [10] Xu J(2013)Genome-wide association study of flowering time and grain yield traits in a worldwide collection of rice germplasm Trends Genet 29 225-355
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