华北农学报 ›› 2019, Vol. 34 ›› Issue (2): 117-123. doi: 10.7668/hbnxb.201751235

所属专题: 小麦 植物保护 生物技术

• 作物遗传育种·种质资源·生物技术 • 上一篇    下一篇

青海春小麦品种高原363成株期抗条锈病基因遗传模型分析

侯璐   

  1. 青海大学 农林科学院, 青海省农林科学院, 青海省农业有害生物综合治理重点实验室, 农业部西宁作物有害生物科学观测实验站, 青海大学省部共建三江源生态与高原农牧业国家重点实验室, 青海 西宁 810016
  • 收稿日期:2018-11-12 出版日期:2019-04-28
  • 作者简介:侯璐(1983-),女,湖北大冶人,副研究员,博士,主要从事植物保护研究。
  • 基金资助:
    青海省自然科学基金项目(2017-ZJ-793);国家自然科学基金项目(31660513);青海高原农业植物种质资源保护平台建设(2017-ZJ-Y41);物种品种资源保护费项目(111821301354052019)

Inheritance Model Analysis of Adult Plant Resistance Gene in Qinghai Spring Wheat Cultivar Gaoyuan 363 to Stripe Rust

HOU Lu   

  1. Academy of Agriculture and Forestry Sciences, Qinghai University, Qinghai Academy of Agriculture and Forestry Sciences, Key Laboratory of Agricultural Integrated Pest Management, Scientific Observing and Experimental Station of Crop Pest in Xining, Ministry of Agriculture, State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
  • Received:2018-11-12 Published:2019-04-28

摘要: 为明确青海春小麦品种高原363成株期抗条锈性遗传基础,分别以成株期抗条锈性青海春小麦品种高原363与感病春小麦品种Taichung 29(T29)杂交并自交创建F2:3分离群体,通过在青海省西宁市和海东市互助县2个试验地点各2 a的田间病圃抗病性鉴定,使用单个分离世代分析法用植物数量性状主基因+多基因混合遗传模型分析高原363/T29 F2群体的抗性遗传效应。F2:3群体的反应型和严重度的频率分布结果表明,高原363/T29 F2:3群体的病害严重度和反应型在西宁和互助共2个环境2 a测试下呈现双峰分布,没有出现连续性分布现象,但是又出现了不同区段内连续性变化,初步分析认为,高原363对小麦条锈病的成株期抗性是一种复杂遗传,这种遗传不仅仅由主效基因控制,同时还受到微效多基因控制,遗传模型分析结果表明,在2个不同地点测试下的高原363,无论是采用严重度数据得出的最优遗传模型还是使用反应型数据得出的最优遗传模型,都是被微效基因影响的2对主基因遗传,并且主基因的作用方式(C-1:2MG-ADI加性-显性-上位性,C-5:2MG-AED完全显性,C-6:2MG-EEAD等显性)是不同的。

关键词: 春小麦, 高原363, 抗条锈性, 遗传模型

Abstract: In order to study the genetic rule of resistance to stripe rust in Qinghai spring wheat cultivar Gaoyuan 363, Qinghai spring wheat adult stage stripe rust resistance cultivar Gaoyuan 363 was crossed with the susceptible spring wheat cultivar Taichung 29 (T29) to produce the F2:3 segregating populations. The stripe rust resistance was identified separately in Xining and Huzhu for two years. The inheritance effects of stripe rust resistance in Gaoyuan 363/T29 F2 populations was analyzed by the method of single generation of joint segregation analysis using mixed inheritance model of major gene plus polygene. Frequency distributions results of Gaoyuan 363/T29 F2:3 populations the infection type and disease severity data showed that:tested on two places, Xining and Huzhu, and in two years for Gaoyuan 363/T29 F2:3 populations, the disease severity and infection type presented a bimodal distribution, which was uncontinuous, but was continuous in some parts. It preliminarily indicated that stripe rust resistance of Gaoyuan 363 was jointly controlled by major gene and minor genes; the result of inheritance model analysis showed that, for Gaoyuan 363 tested in both environments, whether using the disease severity or the infection type data, the most fitted genetic model for stripe rust resistance was controlled by two major genes and partially by minor genes, and the two major gene interactions (C-1:2MG-ADI additive-major-epistatic interaction,C-5:2MG-AED complete dominance effect,C-6:2MG-EEAD equal dominance effect) were different.

Key words: Spring wheat, Gaoyuan 363, Stripe rust resistance, Inheritance model

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引用本文

侯璐. 青海春小麦品种高原363成株期抗条锈病基因遗传模型分析[J]. 华北农学报, 2019, 34(2): 117-123. doi: 10.7668/hbnxb.201751235.

HOU Lu. Inheritance Model Analysis of Adult Plant Resistance Gene in Qinghai Spring Wheat Cultivar Gaoyuan 363 to Stripe Rust[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(2): 117-123. doi: 10.7668/hbnxb.201751235.

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