Genetic diversity in wild diploid wheats Triticum monococcum var. boeoticum and T. urartu (Poaceae) |
| |
| Authors: | N L Smith-Huerta A J Huerta D Barnhart J G Waines |
| |
| Institution: | (1) Department of Botany and Plant Sciences, University of California, 92521 Riverside, CA, USA;(2) Present address: Department of Botany, Miami University, 45056 Oxford, Ohio, USA |
| |
| Abstract: | Summary The genetic diversity of two wild diploid wheat species, Triticum monococcum var. boeoticum and T. urartu, was assessed using starch gel electrophoresis. Genetic diversity is uniformly low in both species. Number of alleles per locus was very low with a mean of 1.22 for T. monococcum var. boeoticum and 1.19 in T. urartu. Percentage of polymorphic loci was also low, with a mean of 19.71 for T. monococcum var. boeoticum and a mean of 18.35 for T. urartu. Mean gene diversity was low with a mean of 0.052 in populations of T. monococcum var. boeoticum and a mean of 0.040 in populations of T. urartu. Genetic affinities of the species and of populations were computed using Nei's identity index (NI). Overall genetic affinities of the two species are NI=0.697. The genetic affinities of different populations of a species are uniformly high with NIs ranging from 0.894 to 1.000 in T. monococcum var. boeoticum and from 0.898 to 1.000 in T. urartu.Research supported by the California Agricultural Experiment Station and the International Board of Plant Genetic Resources |
| |
| Keywords: | Leaf isozymes Triticum Monococcum wheat urartu Starch gel electrophoresis |
| 本文献已被 SpringerLink 等数据库收录！ |
|
