早熟恢复系DR02生育期特性的遗传分析

林成豹; 黄显波; 唐江霞; 邓则勤; 梁水金

doi:10.19303/j.issn.1008-0384.2017.05.006

早熟恢复系DR02生育期特性的遗传分析

doi: 10.19303/j.issn.1008-0384.2017.05.006

福建省三明市农业科学研究院, 福建沙县 365051

基金项目:

福建省再生稻产业重大农技推广服务试点项目子课题 KNJ156001

福建省星火计划重点项目 2016S0034

三明市科技计划项目 2015-N-3

详细信息

作者简介:
林成豹(1981-), 男, 硕士, 副研究员, 研究方向:水稻育种(E-mail:lincb1981@163.com)

中图分类号: S511
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出版历程
- 收稿日期: 2016-09-09
- 修回日期: 2017-03-05
- 刊出日期: 2017-05-01

Inheritance of a Growth Characteristic of Precocious Restorer Rice Line, DR02

Sanming Academy of Agricultural Sciences, Shaxian, Fujian 365051, China

摘要

摘要: 水稻DR02来源于T251与02K511的杂交后代，具有显性早熟特性。以DR02分别与明恢86、明恢63等6个不同类型的中、迟熟水稻品种杂交后代进行遗传性分析。结果显示，各组合F₁的抽穗期均比中亲值早，DR02与双抗明占和9311的杂交F₂的抽穗期呈双峰分布，与其他4个亲本的F₂抽穗期呈单峰分布，用中亲值进行分组，经χ²测验，仅DR02与粤晶丝苗2号和双抗明占组合的F₂代分离比符合3：1，其他组合均表现显著与极显著差异，不符合预期理论比。综合上述分析结果表明水稻材料DR02的早熟性可能是由1个比较大效应的主效QTL控制的。
- 水稻 /
- 早熟性 /
- 恢复系DR02
Abstract: A dominant early maturing trait was identified in DR02 rice bred from T251 and 02K511. Heading dates of the hybrid progenies from DR02 crossed with 6 medium or late maturing varieties, including Minghui 86 and Minghui 63, were analyzed to study the inheritance of the growth characteristic. It was found that the heading dates of F₁ progenies were earlier than those of their mid-parents. The heading dates of F₂ populations from DR02 crossed with Shuangkangmingzhan and 9311 had twin peaks, while those of F₂ from DR02 crossed with the other 4 parents exhibited a unimodal distribution with closely clustered values. The segregation ratio between the early heading and the late heading plants was 3:1 for the F₂ population of DR02 crossed with Yuejingsimiao 2 and Shuangkangmingzhan, while those of other combinations were significantly and extremely significantly different. It suggested that the early maturing trait of DR02 could be largely controlled by a single relatively dominant QTL.
- rice /
- early maturing /
- restorer line DR02

HTML全文

图 1 DR02分别与不同类型品种杂交F₂的抽穗期分布

注：A为DR02/成恢727的F₂；B为DR02/粤晶丝苗2号的F₂；C为DR02/9311的F₂；D为DR02/双抗明占的F₂；E为DR02/明恢86的F₂；F为DR02/明恢63的F₂。P₁为DR02，P₂为中、迟熟亲本，F₁为P1与P2的杂交后代。

Figure 1. Distribution of heading dates in F₂ populations of DR02 crossed with different types of rice

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表 1 DR02与不同类型中、迟熟品种杂交F₁的抽穗期

Table 1. Heading dates of F₁ progenies from DR02 crossed with various types of medium or late maturing varieties

表 2 F₂群体的抽穗期分离

Table 2. Segregation of heading dates on F₂ population

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