+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Phylogeographical structure in the subterranean tuco-tuco Ctenomys talarum (Rodentia: Ctenomyidae): contrasting the demographic consequences of regional and habitat-specific histories



Phylogeographical structure in the subterranean tuco-tuco Ctenomys talarum (Rodentia: Ctenomyidae): contrasting the demographic consequences of regional and habitat-specific histories



Molecular Ecology 16(16): 3453-3465



In this work we examined the phylogeography of the South American subterranean herbivorous rodent Ctenomys talarum (Talas tuco-tuco) using mitochondrial DNA (mtDNA) control region (D-loop) sequences, and we assessed the geographical genetic structure of this species in comparison with that of subterranean Ctenomys australis, which we have shown previously to be parapatric to C. talarum and to also live in a coastal sand dune habitat. A significant apportionment of the genetic variance among regional groups indicated that putative geographical barriers, such as rivers, substantially affected the pattern of genetic structure in C. talarum. Furthermore, genetic differentiation is consistent with a simple model of isolation by distance, possibly evidencing equilibrium between gene flow and local genetic drift. In contrast, C. australis showed limited hierarchical partitioning of genetic variation and departed from an isolation-by-distance pattern. Mismatch distributions and tests of neutrality suggest contrasting histories of these two species: C. talarum appears to be characterized by demographic stability and no significant departures from neutrality, whereas C. australis has undergone a recent demographic expansion and/or departures from strict neutrality in its mtDNA.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 016654912

Download citation: RISBibTeXText

PMID: 17688545

DOI: 10.1111/j.1365-294x.2007.03398.x


Related references

Energy budget in subterranean rodents: insights from the tuco-tuco Ctenomys talarum (Rodentia: Ctenomyidae). University of California Publications in Zoology 134: 111-139, 2007

Phylogeography and population genetic structure of the Talas tuco-tuco Ctenomys talarum integrating demographic and habitat histories. Journal of Mammalogy 94(2): 459-476, 2013

Effect of tunnel inclination on digging energetics in the tuco-tuco, Ctenomys talarum (Rodentia: Ctenomyidae). Die Naturwissenschaften 94(2): 100-106, 2007

Chromosome synapsis and recombination in simple and complex chromosomal heterozygotes of tuco-tuco (Ctenomys talarum: Rodentia: Ctenomyidae). Chromosome Research 22(3): 351-363, 2014

The conservation status of the tuco-tucos, genus Ctenomys (Rodentia : Ctenomyidae), in southern Brazil FT O status da conservacao dos tuco-tucos, genero Ctenomys (Rodentia: Ctenomyidae), no sul do Brasil. 2007

Mounting a specific immune response increases energy expenditure of the subterranean rodent Ctenomys talarum (tuco-tuco): implications for intraspecific and interspecific variation in immunological traits. Journal of Experimental Biology 213(5): 715-724, 2010

Familiarity and mating behavior in the subterranean rodent Ctenomys talarum (tuco-tuco). Canadian Journal of Zoology 85(9): 944-955, 2007

Olfactory discrimination of individual scents in the subterranean rodent Ctenomys talarum (tuco-tuco). Ethology 108(7): 629-641, 2002

Use of chemical communication by the subterranean rodent Ctenomys talarum (tuco-tuco) during the breeding season. Journal of Chemical Ecology 30(11): 2111-2126, 2004

When allowed, females prefer novel males in the polygynous subterranean rodent Ctenomys talarum (tuco-tuco). Behavioural Processes 92: 71-78, 2013

A New Species of Tuco-Tuco, Genus Ctenomys (Rodentia: Ctenomyidae) from Patagonian Chile. Journal of Mammalogy 75(2): 338-348, 1994

The Middle Ear Apparatus Of The Tuco-Tuco Ctenomys Sociabilis (Rodentia, Ctenomyidae). Journal of Mammalogy 85(4): 797-805, 2004

The middle ear apparatus of the tuco-tuco Ctenomys sociabilis (Rodentia, Ctenomyidae). Journal of Mammalogy 85(4): 797-805, 2004

Ctenomys talarum occidentalis, new subspecies of tuco-tuco (Rodentia: Octodontidae) from La Pampa, Argentina. Neotropica (La Plata) 38(99): 35-40, 1992

Bite force and jaw biomechanics in the subterranean rodent Talas tuco-tuco Ctenomys talarum Caviomorpha Octodontoidea. Canadian Journal of Zoology 89(4): 334-342, 2011