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

LIN Cheng-bao; HUANG Xian-bo; TANG Jiang-xia; DENG Ze-qin; LIANG Shui-jin

doi:10.19303/j.issn.1008-0384.2017.05.006

Volume 32 Issue 5

Jun. 2017

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LIN Cheng-bao, HUANG Xian-bo, TANG Jiang-xia, DENG Ze-qin, LIANG Shui-jin. Inheritance of a Growth Characteristic of Precocious Restorer Rice Line, DR02[J]. Fujian Journal of Agricultural Sciences, 2017, 32(5): 495-497. doi: 10.19303/j.issn.1008-0384.2017.05.006

Citation:

LIN Cheng-bao, HUANG Xian-bo, TANG Jiang-xia, DENG Ze-qin, LIANG Shui-jin. Inheritance of a Growth Characteristic of Precocious Restorer Rice Line, DR02[J]. Fujian Journal of Agricultural Sciences, 2017, 32(5): 495-497. doi: 10.19303/j.issn.1008-0384.2017.05.006

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

doi: 10.19303/j.issn.1008-0384.2017.05.006

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

Received Date: 2016-09-09
Rev Recd Date: 2017-03-05
Publish Date: 2017-05-01

Abstract

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

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References(15)

References

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