Research Papers

Genetic Components Analysis on Super japonica Rice Using InDel and SSILP Molecular Markers

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  • Rice Research Institute, Shenyang Agricultural University /Key Laboratory of Northeast Rice Biology, Genetics and Breeding of Ministry of Agriculture/Key Laboratory of Northern japonica Super Rice Breeding, Ministry of Education, Shenyang 110161, China;

Received date: 2013-05-06

  Revised date: 2013-06-07

  Online published: 2014-03-10

Abstract

Genetic background of 15 superrice and their 21 pedigreerelative varieties (including  12 cultivars released from 1977 to 1999 in northeast and 9 japanese varieties bred from 1963 to 2000) were revealed based on 89 subspecificdifferentiation molecular markers (34 InDel and 55 SSILP). The results showed that indica linage have already introgressed into the genomes of 15 superrice varieties at different level which represented by indicatype frequency (Fi ). The Fi  variation of superrice varieties reflected registration periods difference, varieties bred in 2005-2011 were the  highest (Fi=0.068), followed by 1977-1999 (Fi=0.033) and rarely in 1963-2000 (Fi=0.011). Consequently, indicaallele frequencies of recent varieties were gradually increased. And this fact demonstrates that a certain proportion of indica linage introducing is an important strategy to the increased yield of northern japonica rice. 

Cite this article

LIU Dan#, WANG Jiayu#, SUN Jian, TANG Liang, CHEN Wenfu* . Genetic Components Analysis on Super japonica Rice Using InDel and SSILP Molecular Markers[J]. Chinese Journal OF Rice Science, 2014 , 28(2) : 148 -154 . DOI: 10.3969/j.issn.1001-7216.2014.02.006

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