Genetic diversity of soybean genotypes different in powdery mildew resistance using SSR markers

Doan Thi Thuy Linh, Tran Thi Truong, Chu Hoang Ha, Le Van Son

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Published Oct 10, 2017
DOI: https://doi.org/10.25073/2588-1140/vnunst.4565

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THI THUY LINH, Doan et al. Genetic diversity of soybean genotypes different in powdery mildew resistance using SSR markers. VNU Journal of Science: Natural Sciences and Technology, [S.l.], v. 33, n. 1S, oct. 2017. ISSN 2588-1140. Available at: <https://js.vnu.edu.vn/NST/article/view/4565>. Date accessed: 22 nov. 2024. doi: https://doi.org/10.25073/2588-1140/vnunst.4565.
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Issue
Vol 33 No 1S
Section
Review Articles

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Abstract

Powdery mildew disease, one of the major diseases of soybean in Vietnam was caused by Microsphaera diffusa. SSR (Simple sequence repeats) marker, because of their co-dominance, polymorphic and stability have been wildely used to measure genetic diversity in crop. In the present study, genetic basis of 36 soybean genotypes varying in powdery mildew resistance was studied using 14 SSR markers. A total of 61 alleles with an average of 4,36 allele/locus, which indicated hight genetic diversity of the studied genotypes. PIC value of each marker ranged from 0 (Sat_396, Satt183, Sat_298) to 0,711 (Sat_224) with an average of 0.364 which shown high genetic diverrsity among the studied genotypes. At genetic similarity coefficient of 0.75, 36 soybean genotypes divided into 8 distint groups. Group 1 and group 2 included 21/25 genotypes which was resistant to powdery mildew. Groups 1, 2, 4, 5 and 8 include powdery mildew resistance genotypes.


 

Keywords: genetic diversity, Glycine max L., powdery mildew, resistance gene, SSR markers

References

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