Abstract：
BACKGROUND:Previous phylogenetic analyses of African elephants have included limited numbers of forest elephant samples. A large-scale assessment of mitochondrial DNA diversity in forest elephant populations here reveals a more complex evolutionary history in African elephants as a whole than two-taxon models assume. RESULTS:We analysed hypervariable region 1 of the mitochondrial control region for 71 new central African forest elephants and the mitochondrial cytochrome b gene from 28 new samples and compare these sequences to other African elephant data. We find that central African forest elephant populations fall into at least two lineages and that west African elephants (both forest and savannah) share their mitochondrial history almost exclusively with central African forest elephants. We also find that central African forest populations show lower genetic diversity than those in savannahs, and infer a recent population expansion. CONCLUSION:Our data do not support the separation of African elephants into two evolutionary lineages. The demographic history of African elephants seems more complex, with a combination of multiple refugial mitochondrial lineages and recurrent hybridization among them rendering a simple forest/savannah elephant split inapplicable to modern African elephant populations.
journal_name
BMC Evol Bioljournal_title
BMC evolutionary biologyauthors
Johnson MB,Clifford SL,Goossens B,Nyakaana S,Curran B,White LJ,Wickings EJ,Bruford MWdoi
10.1186/1471-2148-7-244subject
Has Abstractpub_date
2007-12-19 00:00:00pages
244issn
1471-2148pii
1471-2148-7-244journal_volume
7pub_type
杂志文章abstract：BACKGROUND:South China encompasses complex and diverse landforms, giving rise to high biological diversity and endemism from the Hengduan Mountains to Taiwan Island. Many species are widely distributed across South China with similar disjunct distribution patterns. To explore the causes of these disjunct distribution p...
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