Genetic diversity and distinctness based on morphological and SSR markers in peanut

Hong, Y and Pandey, M K and Lu, Q and Liu, H and Gangurde, S S and Li, S and Liu, H and Li, H and Liang, X and Varshney, R K and Chen, X (2021) Genetic diversity and distinctness based on morphological and SSR markers in peanut. Agronomy Journal (TSI), 113 (6). pp. 4648-4660. ISSN 0002-1962

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Abstract

The morphological and molecular diversity of 101 peanut varieties from South China were analyzed to identify distinctness among these varieties. No significant difference was observed for six morphological characteristics whereas a range of 0.25–0.51 of diversity index was observed for 11 morphological characteristics, with an average value of 0.39. Molecular characterization with 40 highly polymorphic simple sequence repeats (SSRs) generated a total of 167 alleles ranging from two to six alleles per marker with average 4.18 alleles per marker. The polymorphism information content (PIC) of these markers varied from 0.79 to 0.26 with an average value of 0.55 per marker. The diversity analysis using morphological and genotyping data grouped all the varieties into seven and six clusters, respectively, and varieties released by the same province tended to be grouped in the same cluster. Mantel testing revealed that the correlations between the similarity coefficient matrixes of the morphological characteristics and SSR markers of different varieties were weak (r = .347), implying that deployment of more SSR markers is needed for achieving distinctness among these peanut varieties. Nevertheless, the combination of morphological characteristics and SSR markers will effectively increase the accuracy of distinctiveness identification.

Item Type:	Article
Divisions:	Center of Excellence in Genomics and Systems Biology
CRP:	UNSPECIFIED
Uncontrolled Keywords:	SSR markers, peanut, genetic diversity
Subjects:	Mandate crops > Groundnut Others > Genetics and Genomics
Depositing User:	Mr Nagaraju T
Date Deposited:	09 Jul 2024 04:53
Last Modified:	09 Jul 2024 04:59
URI:	http://oar.icrisat.org/id/eprint/12746
Official URL:	https://acsess.onlinelibrary.wiley.com/doi/full/10...
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	This research was funded by grants from the Special Project for Science and Technology Innovation Strategy of Guangdong Academy of Agricultural Sciences (R2018PY-JX001 and R2020PY-JX004); the National Natural Science Foundation of China (31771841 and 31801401); the Guangdong Modern Agricultural Industry Technology System (2019KJ136); the Science and Technology Program of Guangzhou (201904010190); the Modern Agro-industry Technology Research System(CARS-13). The founders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Links:	Google Scholar

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