Genetic diversity

Genetic characterization of red-colored heartwood genotypes of Chinese fir using simple sequence repeat (SSR) markers

H. J. Duan, Hu, R. Y., Wu, B., Chen, D. X., Huang, K. Y., Dai, J., Chen, Q., Wei, Z. C., Cao, S., Sun, Y. H., and Li, Y., “Genetic characterization of red-colored heartwood genotypes of Chinese fir using simple sequence repeat (SSR) markers”, vol. 14, pp. 18552-18561, 2015.

The present study investigated the genetic characterization of red-colored heartwood Chinese fir [Cunninghamia lanceolata (Lamb.) Hook.] in Guangxi using 21 simple sequence repeat (SSR) markers and analyzes of the genetic variation (N = 149) in samples obtained from five sites in Guangxi Province, China. The number of different alleles and the Shannon’s information index per locus ranged from 3 to 12 and from 0.398 to 2.258 with average values of 6 and 1.211, respectively, indicating moderate levels of genetic diversity within this germplasm collection.

Genetic diversity analysis in Tunisian perennial ryegrass germplasm as estimated by RAPD, ISSR, and morpho-agronomical markers

S. Ghariani, Elazreg, H., Chtourou-Ghorbel, N., Chakroun, M., and Trifi-Farah, N., “Genetic diversity analysis in Tunisian perennial ryegrass germplasm as estimated by RAPD, ISSR, and morpho-agronomical markers”, vol. 14, pp. 18523-18533, 2015.

Tunisia is rich in diverse forage and pasture species including perennial ryegrass. In order to enhance forage production and improve agronomic performance of this local germplasm, a molecular analysis was undertaken. Random amplified polymorphic DNA (RAPD), inter simple sequence repeats (ISSR) and morpho-agronomical traits markers were used for genetic diversity estimation of ryegrass germplasm after screening 20 spontaneous accessions, including a local and an introduced cultivars.

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