Chinese Journal OF Rice Science

Chinese Journal OF Rice Science >

2010 , Vol. 24 >Issue 6: 595 - 600

DOI: https://doi.org/10.3969/j.issn.1001-7216.2010.06.006

研究报告

Genetic Improvement and Biological Characteristic Analysis of Dwarf Abortive Type Japonica Cytoplasmic Male Sterile Line with Wide Compatibility

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  • State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou 310006, China; *Corresponding author,
    E-mail: mingguowu@yahoo.com.cn

Received date: 1900-01-01

  Revised date: 1900-01-01

  Online published: 2010-11-10

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Abstract

From the view of methodology for genetic improvement of japonica cytoplasmic male sterile (CMS) lines, the breeding of the dwarfabortive type(DA type) japonica CMS line Chunjiang 95A with wide compatibility was described. The biological characteristics of the DA type Chunjiang 95A and its isonuclear alloplasmic CMS line DianI type Chunjiang 95A were investigated. The results showed that the DA type Chunjiang 95A was a japonicalinous CMS line and mainly typical abortive, and had a better fertility stability than stained abortion type japonica CMS lines. The DA type Chunjiang 95A was featured by high stigma exsertion, good flowering habit, high outcrossing rate and wide compatibility. Its recoverability was different from stained abortion type japonica CMS lines. In addition, genetic improvement of the typical abortion type japonica CMS lines and the application prospects of heterosis were discussed.

Key words： wide compatibility; japonica rice; cytoplasmic male sterile line; stigma exsertion; breeding

Cite this article

SONG Xin-wei,LIN Jian-rong,WU Ming-guo* . Genetic Improvement and Biological Characteristic Analysis of Dwarf Abortive Type Japonica Cytoplasmic Male Sterile Line with Wide Compatibility
[J]. Chinese Journal OF Rice Science, 2010 , 24(6) : 595 -600 . DOI: 10.3969/j.issn.1001-7216.2010.06.006

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