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Higher impact of female than male migration on population structure in large mammals.

Authors
Type
Published Article
Journal
Molecular ecology
Publication Date
Volume
9
Issue
8
Pages
1159–1163
Identifiers
PMID: 10964235
Source
Medline
License
Unknown

Abstract

We simulated large mammal populations using an individual-based stochastic model under various sex-specific migration schemes and life history parameters from the blue whale and the Asian elephant. Our model predicts that genetic structure at nuclear loci is significantly more influenced by female than by male migration. We identified requisite comigration of mother and offspring during gravidity and lactation as the primary cause of this phenomenon. In addition, our model predicts that the common assumption that geographical patterns of mitochondrial DNA (mtDNA) could be translated into female migration rates (Nmf) will cause biased estimates of maternal gene flow when extensive male migration occurs and male mtDNA haplotypes are included in the analysis.

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