Microsatellite Marker-Based Analysis of Rice Varieties in Regional Yield Trial of Heilongjiang Province

doi:10.3969/j.issn.1000-7091.2012.02.021

Abstract

Abstract: The genetic diversity of 18 regional trail rice lines in the First Accumulated Temperature Zone，20?rice varieties in 21st century and 14 rice varieties before 21st century in Heilongjiang province were investigated by?20 phenotypic traits and SSR assay with 51 pairs of primers． The results showed that 92 phenotypic variation and?166 alleles were detected，with an average of 2． 78 alleles on every locus phenotypic variation and alleles in regional?trail rice lines were 64 and 142，respectively． 78 and 126 were respectively with an average of 2． 47 alleles on every?locus in 21st century． And 82 and 127 were respectively with an average of 2． 49 alleles on every locus before 21st?century． Genetic variation among different varieties(94%) varied greatly and among different groups(6%) varied?slightly． The tested materials were clustered into 4 groups and regional trail rice lines formed independent group． The?genetic diversity of regional trail rice lines were significantly higher than rice varieties in 21st century and before?21st century． But compared to other areas，the genetic diversity of rice in Heilongjiang province was still at a low?level，and it is necessary to broaden the genetic base．

Key words: Rice, Regional trail, Genetic diversity

CLC Number:

S511.03

LI Hong-yu, ZHANG Long-hai, LIU Meng-hong, XU Zheng-jin, ZHAO Zi-cheng, WANG Hai-ze, ZHAO Ming-hui, XU Hai, WANG Jia-yu. Microsatellite Marker-Based Analysis of Rice Varieties in Regional Yield Trial of Heilongjiang Province[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(2): 105-110. doi: 10.3969/j.issn.1000-7091.2012.02.021.

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