BAO Zeran.Application of Mixed Pool Sequencing in QTL Verification of Rice Deep Root Ratio[J].HEILONGJIANG AGRICULTURAL SCIENCES,2023,(12):1-6.[doi:10.11942/j.issn1002-2767.2023.12.0001]
混合池测序在水稻深根比QTL验证中的应用研究
- Title:
- Application of Mixed Pool Sequencing in QTL Verification of Rice Deep Root Ratio
- 文章编号:
- 1
- Keywords:
- rice; QTL; mixing cell sequencing; depth root ratio; gene
- 文献标志码:
- A
- 摘要:
- 水稻根系是其营养吸收以及生长的关键器官,强健的根系是水稻抗旱性培育的重要指标。为培育优良水稻品种,采用混合池测序法对水稻样本进行测序,并通过双亲间多态性进行样本筛选与标记,从而对水稻根数量性状基因座(Quantitative Trait Locus,QTL)进行挖掘。结果表明,在亲本多态标记中,用486个SSR分子标记实现对亲本多态性的分析,多态占比率最高为43.20%。在水稻QTL定位中,得到5个候选基因在根尖特异性表达,并且与根尖生长角度有关,意味着这些基因与水稻深根比有着密切的关系。
- Abstract:
- The root system of rice is a key organ for nutrient absorption and growth, and a strong root system is an important indicator for cultivating drought resistance in rice. In order to cultivate excellent rice varieties, mixed pool sequencing method was used to sequence rice samples, and sample screening and labeling were carried out through inter parent polymorphism to mine quantitative trait loci (QTLs) for root traits in rice. The results showed that among the parental polymorphism markers, 486 SSR molecular markers were used to analyze parental polymorphism, with the highest proportion of polymorphism being 43.20%. In QTL mapping of rice, 5 candidate genes were indentified to be specifically expressed at the root tip and related to the growth angle of the root tip, indicating a close relationship between these genes and the deep root ratio of rice.
参考文献/References:
[1]王豪,张健,王加峰,等.基于QTL-seq的水稻粒质量QTL定位及候选基因分析[J].华北农学报,2020,35(2):18-28.
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[J].HEILONGJIANG AGRICULTURAL SCIENCES,2021,(12):6.[doi:10.11942/j.issn1002-2767.2021.02.0006]
备注/Memo
收稿日期:2023-04-17