Dispersal of durum wheat [Triticum turgidum L. ssp. turgidum convar. durum (Desf.) MacKey] landraces across the Mediterranean basin assessed by AFLPs and microsatellites |
| |
Authors: | Marc Moragues Marian Moralejo Mark E. Sorrells Conxita Royo |
| |
Affiliation: | (1) Area de Conreus Extensius, Centre UdL-IRTA, Alcalde Rovira Roure, 191, 25198 Lleida, Spain;(2) Plant Breeding Department, Cornell University, 252 Bradfield Hall, 14850 Ithaca, NY, USA |
| |
Abstract: | A comprehensive characterization of crop germplasm is critical to the optimal improvement of the quality and productivity of crops. Genetic relationships and variability were evaluated among 63 durum wheat landraces from the Mediterranean basin using amplified fragment length polymorphisms (AFLPs) and microsatellites markers. The genetic diversity indices found were comparable to those of other crop species, with average polymorphism information content (PIC) values of 0.24 and 0.70 for AFLP and microsatellites, respectively. The mean number of alleles observed for the microsatellites loci was 9.15. Non-metric multi-dimensional scaling clustered the accessions according to their geographical origin with the landraces from the South shore of the Mediterranean Sea closely related. The results support two dispersal patterns of durum wheat in the Mediterranean basin, one through its north side and a second one through its south side. |
| |
Keywords: | AFLP Genetic diversity Genetic relationships Landraces Triticum turgidum L. ssp. turgidum convar. durum (Desf.) MacKey |
本文献已被 SpringerLink 等数据库收录! |
|