My SciELO
Services on Demand
Article
Indicators
- Cited by SciELO
Related links
- Similars in SciELO
Share
Cuban Journal of Agricultural Science
On-line version ISSN 2079-3480
Abstract
GONZALEZ, C. and MARTINEZ, R.O.. Genetic characterization of clones and varieties of Cenchrus purpureus with microsatellite markers. Cuban J. Agric. Sci. [online]. 2019, vol.53, n.3, pp. 307-318. Epub Sep 01, 2019. ISSN 2079-3480.
This study determined the genetic diversity in 15 varieties and clones of Cenchrus purpureus with 11 SSR microsatellite DNA markers identified in pearl millet (Cenchrus americanus). Results indicated polymorphism in the SSR markers, which amplified 68 fragments in total, of which 57 were polymorphic and 7 appeared in a single genotype. Markers CTM8 (DI = 0.88), PSMP2255 (DI = 0.71), PSMP2267 (DI = 0.74) and PGIRD56 (DI = 0.74) showed the highest diversity indixes. Dice distance coefficients ranged from 0.04 to 0.63, indicating high genetic variability among the accessions. Genotypes were divided into three groups in which King grass and OM-22 varieties were not included. The three groups were composed by the genotypes suitable for grazing. The use of these markers is suggested to evaluate genetic diversity in the 56 accessions conserved in the Instituto de Ciencia Animal germplasm bank.
Keywords : livestock; forage; genetic improvement.