Indica Genetic Constitution and Genetic Diversity Analysis in Maintainer Line of Dian type Japonica Hybrid Rice

2018 ◽  
Author(s):  
Yifang Luan ◽  
Juan Li ◽  
Dandan Li ◽  
Zhenzhen Jiang ◽  
Zhan Liu ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Hybrid Rice ◽  
Genetic Constitution ◽  
Diversity Analysis ◽  
Type I ◽  
Maintainer Line ◽  
Genetic Diversity Analysis

scholarly journals Genetic Diversity Analysis of Hybrid Rice Parental Lines and Genetic Purity Assessment of Hybrid Seeds of China

2020 ◽  
Vol 12 (5) ◽  
pp. 37
Author(s):  
Haiya Cai ◽  
Yuxia Lu ◽  
Gang Liu ◽  
Shuo Zhang ◽  
Haitao Jia ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Hybrid Rice ◽  
Southern China ◽  
Polymorphic Information Content ◽  
Diversity Analysis ◽  
Japonica Rice ◽  
Similarity Coefficients ◽  
Genetic Purity ◽  
Genetic Diversity Analysis ◽  
Parental Lines

Thirty-five pairs of SSR primers were used for genetic diversity analysis and DNA fingerprinting of 31 hybrid rice core parental lines developed in central- and southern-China using one japonica rice line and three inbred rice lines as the check varieties. The average number of alleles (Na) per SSR locus was 4.02, with a range of two to eight, the effective number of alleles (Ne) was 83.16 with a mean of 2.38, ranging from 1.19 to 4.66. The polymorphic information content (PIC) ranged from 0.16 to 0.79, with an average number of 0.52. The results of the cluster analysis indicated that the check varieties viz., one japonica rice and three inbred rice, were clustered into two groups with similarity coefficients of 0.62 and 0.71 respectively indicating their relatedness. Thirty-one hybrid rice parental lines were clustered into 6 groups according to their different types, pedigrees and regions of development with similarity coefficients of approximately 0.76. The highest genetic similarity coefficient (0.94) was observed between Y58S and C815S, and the lowest (0.63) was observed between Quan9311A and Peiai64S. The purity of one hybrid rice cultivar was tested using characteristic marker and the field test, and it was demonstrated that the purities obtained using the two methods were similar. This research will be helpful for rice breeding, new cultivar registration and seed production.

scholarly journals Conservation recommendations for Oryza rufipogon Griff. in China based on genetic diversity analysis

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Junrui Wang ◽  
Jinxia Shi ◽  
Sha Liu ◽  
Xiping Sun ◽  
Juan Huang ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Oryza Rufipogon ◽  
Diversity Analysis ◽  
Genetic Diversity Analysis ◽  
Oryza Rufipogon Griff
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