Open AccessExtent and Patterns of RAPD Variation in Landraces and Cultivars of Rye ( Secale Cereale L.) from Northern Europe
Author(s) -
Persson Karin,
Díaz Oscar,
Bothmer Roland
Publication year - 2001
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.2001.00237.x
Subject(s) - rapd , biology , outcrossing , secale , cultivar , genetic variation , genetic diversity , genetic variability , botany , crop , agronomy , genetics , genotype , population , pollen , demography , sociology , gene
Little is known about the extent and patterns of distribution of RAPD diversity in outcrossing species. This study is the first step in using RAPD markers to quantify the amount and distribution of genetic variation within and between accessions of 9 landraces and 3 cultivars of cultivated rye from Northern Europe. A high level of RAPD variation was detected, demonstrating the utility of RAPDs for genetic characterisation in rye. The results show that: (1) landraces and improved cultivars maintain roughly the same high levels of RAPD variation, (2) landraces from Norway, Germany and Finland showed the lowest level of variation, probably because of a small amount of seeds from the original samples, (3) most of the RAPD variation was found within rather than between the accessions, which is consistent with the pattern expected for a cross pollinated crop. Both the cluster and the principal coordinates analyses displayed the same pattern of genetic relationship among the accessions studied.