dc.contributor.author |
Faulkes, Christopher G.
|
|
dc.contributor.author |
Bennett, Nigel Charles
|
|
dc.contributor.author |
Cotterill, Fenton P.D.
|
|
dc.contributor.author |
Stanley, W.
|
|
dc.contributor.author |
Mgode, Georgies Frank
|
|
dc.contributor.author |
Verheyen, Erik
|
|
dc.date.accessioned |
2012-07-05T10:24:03Z |
|
dc.date.available |
2012-12-31T00:20:03Z |
|
dc.date.issued |
2011-12 |
|
dc.description.abstract |
Alongside the eusocial naked mole-rat, Heterocephalus glaber, Heliophobius
argenteocinereus represents the second oldest lineage within the African mole-rat family
Bathyergidae, and phylogenetically intermediate between the East African Het. glaber and the
South African genera Bathyergus and Georychus. Across its geographic range, Hel..
argenteocinereus is widely distributed on both sides of the East African Rift System (EARS),
and is a key taxon for understanding the phylogeographic patterns of divergence of the family
as a whole. Phylogenetic analysis of 62 mitochondrial cyt b sequences, representing 48 distinct
haplotypes from 26 geographic locations across the range of Heliophobius, consistently and
robustly resolved six genetically divergent clades that we recognize as distinct evolutionary
species. Early species descriptions of Heliophobius were synonymized into a monotypic taxonomy
that recognized only Hel. argentocinereus. These synonyms constitute available names for these
rediscovered cryptic lineages, for which combined morphological and genetic evidence for
topotypical populations endorses the recognition of six to eight distinct taxa. Bayesian estimates
of diver- gence times using the fossil Proheliophobius as a calibration for the molecular
clock suggest that the adaptive radiation of the genus began in the early Miocene, and that
cladogenesis, represented in the extant species, reflects a strident signa-
ture of tectonic activity that forged the principal graben in the EARS. |
en |
dc.description.librarian |
ab2012 |
en |
dc.description.sponsorship |
SYNTHESYS grant (BE-TAF-289), grants from the National Research Foundation, the University of Pretoria South Africa (to NCB) and the ERANDA
and Bay Foundations (FC). |
en |
dc.description.uri |
http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1469-7998 |
en |
dc.identifier.citation |
Faulkes, CG, Bennett, NC, Cotterill, FPD, Stanley, W, Mgode, GF & Verheyen, E 2011, 'Phylogeography and cryptic diversity of the solitary-dwelling silvery mole-rat, genus Heliophobius (family: Bathyergidae)', Journal of Zoology, vol. 285, no. 4, pp. 324-338. |
en |
dc.identifier.issn |
0952-8369 (print) |
|
dc.identifier.issn |
1469-7998 (online) |
|
dc.identifier.other |
10.1111/j.1469-7998.2011.00863.x |
|
dc.identifier.uri |
http://hdl.handle.net/2263/19341 |
|
dc.language.iso |
en |
en |
dc.publisher |
Wiley-Blackwell |
en |
dc.rights |
© 2011 The Authors. Journal of Zoology © 2011 The Zoological Society of London. |
en |
dc.subject |
Heliophobius |
en |
dc.subject |
Silvery mole-rat |
en |
dc.subject |
African mole-rats (Bathyergidae) |
en |
dc.subject |
Phylogeography |
en |
dc.subject |
Taxonomy |
en |
dc.subject |
Rift valley |
en |
dc.subject |
Tectonics |
en |
dc.subject.lcsh |
Bathyergidae |
en |
dc.subject.lcsh |
Phylogeography |
en |
dc.title |
Phylogeography and cryptic diversity of the solitary-dwelling silvery mole-rat, genus Heliophobius (family: Bathyergidae) |
en |
dc.type |
Postprint Article |
en |