Ryu, J. and Im, S.B. and Kwon, S.J. and et al, . (2016) Chemical and genetic diversity of high-seed-yield sorghum (Sorghum bicolor M.) germplasms. Genetics Molecular Research, 15 (3). pp. 1-17.
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Abstract
This study evaluated the chemical and genetic diversity of high-seed-yield sorghum germplasms from Korea, the United States, and South Africa. We identified significant differences in the chemical contents of whole plants at the heading stage in all cultivars, including differences in crude protein, fat, fiber, ash, neutral detergent fiber, acid detergent fiber, mineral, and fatty acid contents. Our results suggest that Banwoldang is the most appropriate cultivar for roughage because of its high protein yield. We identified significant differences in the tannin, flavonoid, amylose, mineral, crude fat, fatty acid, and 3-deoxyanthocyanin contents in the whole grain from all cultivars, but not in the mineral or crude fat contents. Tannin levels were generally low. IS645 contained the highest levels of flavonoids and linolenic acid compounds, and Moktak had the highest amylose and deoxyanthocyanidin content in the grain. To assess genetic diversity, we used 10 simple sequence repeat (SSR) primer sets to identify 38 alleles with 3-8 alleles per locus. Based on phylogenetic analysis of the SSR markers, the sorghum cultivars were divided into three major groups. Comparison of clusters based on chemical compositions with those based on SSRs showed that the groups formed by the three native Korean cultivars clustered similarly in molecular dendrograms. Association analysis was conducted for the 10 SSR marker; 48 chemical and growth traits were present for two marker traits (seed color and whole plant fatty acid content) with significant marker-trait associations. These markers could be used to select sorghum cultivars for breeding programs.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Chemical analysis, SSR marker, Marker-trait associations, Sorghum |
| Author Affiliation: | Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup, Korea |
| Subjects: | Crop Improvement |
| Divisions: | Sorghum |
| Depositing User: | Mr B Krishnamurthy |
| Date Deposited: | 21 Jul 2017 04:38 |
| Last Modified: | 21 Jul 2017 04:38 |
| Official URL: | http://dx.doi.org/10.4238/gmr.15038677 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/14882 |
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