ACTA AGRICULTURAE BOREALI-SINICA ›› 2012, Vol. 27 ›› Issue (5): 104-109. doi: 10.3969/j.issn.1000-7091.2012.05.020

Special Issue: Rice Biotechnology

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Effects of Low Temperature Treatment on Androgamete Genotype Frequencies of Rice Reciprocal Cross F_1

ZHANG Yun12, TAN Xue-lin2, WEN Jian-cheng2, TAN Ya-ling2   

  1. 1. Food Crops Research Institute Yunnan Academy of Agricultural Sciences Kunming 650205 China ;

    2. Rice Research Institute Yunnan Agricultural University Kunming 650201 China
  • Received:2012-08-12 Published:2012-10-28

Abstract: The F1 plants were produced by reciprocal cross between a cv.Xiaomagu,a cold tolerant japonica landrace collected at 2 670 m altitde with cv.Nan 34,which was derived from mult-crosses between indica and japonica.Three populations were developed by pollinating a cytoplasmic male sterile(CMS) line of Dian typeⅠwith the panicles of the F1S treated by 14℃and 17℃ temperatmes in vitro.The results showed that the temperature and the cytoplasmic background led to the selection of F1 androgamete genotype,which result in the deviation of male gamete genotypes proportion from Mendelian fashion,after the pollen fertility of F1′s and PCR locus of its test-cross population have been analyzed.Studies on the issue would make benefit to understanding rice genetic differentiation resulted from temperature variation,and benefit to exploit approach of direction breeding based on genotype selection of male gametes,and also benefit to understanding of genetic variation brought by global climate change.

Key words: Genotype frequency, Rice(Oryza sativa L.) Androgamete selection, Treatment of low temperature, Cytoplasm

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Cite this article

ZHANG Yun1, TAN Xue-lin, WEN Jian-cheng, TAN Ya-ling. Effects of Low Temperature Treatment on Androgamete Genotype Frequencies of Rice Reciprocal Cross F_1[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(5): 104-109. doi: 10.3969/j.issn.1000-7091.2012.05.020.

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