Species boundaries and possible hybridization between the black mongoose (Galerella nigrata) and the slender mongoose (Galerella sanguinea)

Rapson, Sara A.; Goldizen, Anne W.; Seddon, Jennifer M.

doi:10.1016/j.ympev.2012.08.005

Cited by 11 publications

(6 citation statements)

References 69 publications

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“…(Drummond et al, 2011). It has been reported that the evolutionary rates of the COI genes in the Crustacea vary from 1.66%/Ma to 3.0%/Ma (Ketmaier et al, 2003), although a rate of approximately 2.0%/Ma is broadly used for the molecular clock of vertebrate mitochondrial cytochrome b (e.g., Rocha et al, 2005;Fernandes et al, 2012;Rapson et al, 2012). Because there is no reliable temporal calibration point directly applicable to our data, we used a rate of 2.5%/Ma as a representative value, which was reported to be the COI divergence rate in a stenasellid isopod (Ketmaier et al, 2003).…”

Section: Phylogenetic Analysesmentioning

confidence: 99%

Phylogeography of Semiterrestrial Isopod,Tylos granuliferus, on East Asian Coasts

2015

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Section: Phylogenetic Analysesmentioning

confidence: 99%

Phylogeography of Semiterrestrial Isopod,Tylos granuliferus, on East Asian Coasts

2015

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“…The rate of approximately 2.0%/myr is broadly used for molecular clock of vertebrate mitochondrial cytochrome b as shown in bony fishes (e.g., Rocha et al, 2005), amphibians (e.g., Matsui et al, 2007), reptiles (e.g., Carranza and Arnold, 2006), birds (e.g., Fernandes et al, 2013), and mammals (e.g., Rapson et al, 2012). As there was no reliable temporal calibration point directly applicable to our data, we used the rate of 2.0%/myr assuming a molecular clock for cytochrome b.…”

Section: Genetic Structure Divergence Times and Historical Demographymentioning

confidence: 99%

Phylogenetic Relationships, Genetic Divergence, Historical Biogeography and Conservation of an Endangered Gecko,Goniurosaurus kuroiwae(Squamata: Eublepharidae), from the Central Ryukyus, Japan

et al. 2014

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The Kuroiwa's eyelid gecko Goniurosaurus kuroiwae is an endangered species in a state of relict endemism in the Central Ryukyus, Japan, and is divided into five subspecies. We analyzed variations in sequence data for approximately 1900 base positions of mitochondrial 12S and 16S rRNA, and cytochrome b genes from samples representing all recognized subspecies of G. kuroiwae together with those from congeneric species in order to test the relevant previous phylogenetic hypotheses and discuss biogeographical implications in the degree and pattern of genetic divergence within G. kuroiwae. Our results, while confirming a previous molecular phylogenetic hypothesis proposed on the basis of much smaller data set, negate the relationships hypothesized on morphological grounds by explicitly supporting: 1) the primary dichotomy, with substantial genetic divergence, between G. k. splendens from the Amami Island Group and the remaining subspecies all from the Okinawa Island Group; and 2) the presence of at least six independent lineages within the latter, indicating non-monophyly for two of the subspecies, G. k. kuroiwae and G. k. orientalis, in the current taxonomic definitions. The marked genetic divergence between populations of the two island groups seems to have initiated in the middle Miocene, i.e., prior to formation of straits that have consistently been separating these two island groups since the early Pleistocene. All populations of G. kuroiwae are regarded as endangered from the viewpoint of conservation genetics.

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“…(). This substitution rate has been widely assumed for vertebrate mitochondrial protein‐coding gene (e.g., Carranza & Arnold, ; Rapson, Goldizen, & Seddon, ; Fernandes, Gonzalez, Wink, & Aleixo, ; Rocha, Posada, & Harris, ). We then calculated the ratio of interhaplotypic distances of IQM and each codon position of ND2 and cyt b to those of whole cyt b , and obtained expected nucleotide substitution rate for each gene and codon position by multiplying the ratio by 1.0 (% per lineage per my).…”

Section: Methodsmentioning

confidence: 94%

Species delimitation and biogeography of the Ryukyu ground geckos,Goniurosaurus kuroiwaessp. (Squamata: Eublepharidae), by use of mitochondrial and nuclear DNA analyses

Kurita

Honda

Toda

2017

J Zool Syst Evol Res

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In the Ryukyu Archipelago, Japan, Goniurosaurus geckos are currently divided into six allopatric taxa among nearby islands. Recent studies suggested the occurrence of large genetic divergence within a single island and the possible non‐monophyly of a few taxa, but their species delimitation is not well resolved. We investigated the taxonomic relationships between the possibly geographically overlapped, highly diverged entities as well as other island populations via dense sampling. Our mitochondrial and nuclear DNA analyses showed that the two genetic groups were distributed in parapatry within Okinawajima Island and that they were hybridizing in narrow area around the contact zone. Geohistorical evidence suggests that the restricted gene flow has been caused by some intrinsic isolation mechanisms. Thus, we conclude that the two lineages represent full species. Mitochondrial analysis also showed that the genetic differences among other island populations were comparable to those between these species, thereby suggesting the presence of seven full species, including one unnamed taxon. We also discuss the possible cause of this divergence and why it has occurred at such a fine geographic scale.

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Species boundaries and possible hybridization between the black mongoose (Galerella nigrata) and the slender mongoose (Galerella sanguinea)

Cited by 11 publications

References 69 publications

Phylogeography of Semiterrestrial Isopod,Tylos granuliferus, on East Asian Coasts

Phylogeography of Semiterrestrial Isopod,Tylos granuliferus, on East Asian Coasts

Phylogenetic Relationships, Genetic Divergence, Historical Biogeography and Conservation of an Endangered Gecko,Goniurosaurus kuroiwae(Squamata: Eublepharidae), from the Central Ryukyus, Japan

Species delimitation and biogeography of the Ryukyu ground geckos,Goniurosaurus kuroiwaessp. (Squamata: Eublepharidae), by use of mitochondrial and nuclear DNA analyses

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