Abstract

The purpose of this study was to comparatively analyze the genetic diversity of sesame (Sesamum indicum L.) using agro-morphological and molecular markers. Twelve sesame populations collected from three regions in Cambodia and Vietnam were used in this study. A high genetic variation was revealed both by agro-morphological and RAPD markers within and among the 12 sesame populations. The range of agro-morphological trait based average taxonomic distance among populations (0.02 to 0.47) was wider than that of RAPD based genetic distance (0.06 to 0.27). The mean distance revealed by agro-morphological markers (0.23) and RAPD markers (0.22) was similar. RAPD based analysis revealed a relatively higher genetic diversity in populations from South Vietnam as compared to the other two regions. Interestingly, populations from this region also had higher values for yield related traits such as number of capsules per plant, number of seeds per capsule, and seed yield per plant suggesting positive correlation between the extent of genetic variation within population and yield related traits in sesame. A highly significant positive correlation (r = 0.88, P < 0.001) was found between agro-morphological and RAPD markers in estimating the genetic distance between populations. Both methods suggested the existence of a substantial amount of genetic diversity both in the Vietnamese and Cambodian populations. Although both agro-morphological and RAPD markers were found to be useful in genetic diversity analysis in sesame, their combined use would give superior results.

Published in

Hereditas
2011, Volume: 148, number: 1, pages: 28-35
Publisher: WILEY-BLACKWELL

SLU Authors

• Pham, Toan

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Dida, Mulatu Geleta

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Merker, Arnulf

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

• Carlsson, Anders

  • Department of Plant Breeding, Swedish University of Agricultural Sciences
    

Sustainable Development Goals

SDG2 End hunger, achieve food security and improved nutrition and promote sustainable agriculture


UKÄ Subject classification

Environmental Sciences related to Agriculture and Land-use
Agricultural Science


Publication identifier

DOI: https://doi.org/10.1111/j.1601-5223.2010.02196.x

Permanent link to this page (URI)

https://res.slu.se/id/publ/57463