期刊
JOURNAL OF HEREDITY
卷 104, 期 1, 页码 57-71出版社
OXFORD UNIV PRESS INC
DOI: 10.1093/jhered/ess086
关键词
allozymes; Bayes factors; gene flow; hybridization; migration; mitochondrial DNA; model selection; Pelophylax; sympatry; water frogs
资金
- U.S. National Science Foundation [BSR 86-14881, DEB 0822626, DEB 1145999]
- Swiss National Fund [31-37579.93, 31-59144.99, 31-103903/1]
- Deutsche Forschungsgemeinschaft [213/3-1, 3-2, 3-3]
- National Institutes of Health through the joint National Science/National Institutes of General Medical Studies' Mathematical Biology program [R01 GM 078985]
- Division Of Environmental Biology
- Direct For Biological Sciences [822626] Funding Source: National Science Foundation
Variation patterns of allozymes and of ND3 haplotypes of mitochondrial DNA reveal a zone of genetic transition among western Palearctic water frogs extending across northeastern Greece and European Turkey. At the western end of the zone, allozymes characteristic of Central European frogs known as Pelophylax ridibundus predominate, whereas at the eastern end, alleles characteristic of western Anatolian water frogs (P. cf. bedriagae) prevail. The ND3 haplotypes reveal 2 major clades, 1 characteristic of Anatolian frogs, the other of European; the European clade itself has distinct eastern and western subclades. Both the 2 major clades and the 2 subclades overlap within the transition zone. Using Bayesian model selection methods, allozyme data suggest considerable immigration into the Nestos River area from eastern and western populations. In contrast, the ND3 data suggest that migration rates are so high among all locations that they form a single panmictic unit; the best model for allozymes is second best for mitochondrial DNA (mtDNA). Nuclear markers (allozymes), which have roughly 4 times as deep a coalescent history as mtDNA data and thus may reflect patterns over a longer time, indicate that eastern and western refugial populations have expanded since deglaciation (in the last 10 000 years) and have met near the Nestos River, whereas the mtDNA with its smaller effective population size has already lost the signal of partitioning into refugia.
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