Molecular evidence for deep phylogenetic divergence in <i>Mandrillus sphinx</i>

Telfer, Paul; Souquière, Sandrine; Clifford, Stephen L.; Abernethy, Katharine; Bruford, Michael William; Disotell, Todd R.; Sterner, Kirstin N.; Roques, Pierre; Marx, Preston A.; Wickings, E. Jean

doi:10.1046/j.1365-294x.2003.01877.x

Cited by 86 publications

(88 citation statements)

References 23 publications

(58 reference statements)

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“…: A signal of recombination was detected in mtDNA of papionin monkeys (Piganeau et al 2004;Tsaousis et al 2005), including M. nemestrina (R. Setyadji, B. Suryobroto, T. Watanabe, and O. Takenaka, unpublished data; Evans et al 1999), Sulawesi macaques (Evans et al 1999), baboons (Newman et al 2004), and mandrills (Telfer et al 2003). After correction for multiple tests, one of four indirect tests for recombination used by Piganeau et al (2004) support recombination in the mtDNA data in this study from Borneo M. nemestrina (probability of the null hypothesis of no recombination (P no recomb ) ¼ 0.216, 0.015, 0.768, and .0.001 according to LDr 2 , LDD9, geneconv, and Max x 2 statistic tests).…”

Section: Tablementioning

confidence: 99%

Sex-Linked Inheritance in Macaque Monkeys: Implications for Effective Population Size and Dispersal to Sulawesi

Evans

Melnick

et al. 2010

Genetics

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Sex-specific differences in dispersal, survival, reproductive success, and natural selection differentially affect the effective population size (N e ) of genomic regions with different modes of inheritance such as sex chromosomes and mitochondrial DNA. In papionin monkeys (macaques, baboons, geladas, mandrills, drills, and mangabeys), for example, these factors are expected to reduce N e of paternally inherited portions of the genome compared to maternally inherited portions. To explore this further, we quantified relative N e of autosomal DNA, X and Y chromosomes, and mitochondrial DNA using molecular polymorphism and divergence information from pigtail macaque monkeys (Macaca nemestrina). Consistent with demographic expectations, we found that N e of the Y is lower than expected from a Wright-Fisher idealized population with an equal proportion of males and females, whereas N e of mitochondrial DNA is higher. However, N e of 11 loci on the X chromosome was lower than expected, a finding that could be explained by pervasive hitchhiking effects on this chromosome. We evaluated the fit of these data to various models involving natural selection or sex-biased demography. Significant support was recovered for natural selection acting on the Y chromosome. A demographic model with a skewed sex ratio was more likely than one with sex-biased migration and explained the data about as well as an ideal model without sex-biased demography. We then incorporated these results into an evaluation of macaque divergence and migration on Borneo and Sulawesi islands. One X-linked locus was not monophyletic on Sulawesi, but multilocus data analyzed in a coalescent framework failed to reject a model without migration between these islands after both were colonized.T HE effective size of a population (N e ) determines the relative impact of genetic drift and natural selection on mutations with mild effects on fitness (Charlesworth 2009). Differences in N e are hypothesized to affect virtually every aspect of genome evolution, including rates of molecular evolution, abundance of introns and transposable elements, and persistence of duplicate genes, and this has important implications for the evolution of complexity via both adaptive and degenerative processes (Lynch 2007). Of relevance are not only the number of different individuals in a population, but also the number of copies of a gene within each individual. In diploid species with separate sexes, sex chromosomes and mitochondrial DNA (mtDNA) differ in copy number from autosomal DNA (aDNA): both sexes have two alleles at autosomal loci whereas in species with male heterogamy, males have one X and one Y chromosome, females have two Xs, and a female/male pair has effectively only one copy of mtDNA due to maternal inheritance. Sexspecific differences in demographic parameters such as migration, adult sex ratio, and variance in reproductive success also affect relative copy number and associated levels of neutral polymorphism at mtDNA, aDNA, the X chromosome (xDNA), and the...

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Section: Tablementioning

confidence: 99%

Sex-Linked Inheritance in Macaque Monkeys: Implications for Effective Population Size and Dispersal to Sulawesi

Evans

Melnick

et al. 2010

Genetics

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“…Although palynological and biogeographical data have been used to infer forest refugia (11)(12)(13)(14)(15)(16), their precise location and role in Pleistocene diversification is controversial. Several molecular studies suggest that refugia may have played an important role in structuring montane birds (17)(18)(19), primates (20)(21)(22), and trees (23). However, other forest species such as chimpanzees (24)(25)(26) and elephants (27,28) show relatively weak regional genetic structure, suggesting that wideranging and/or savannah-tolerant species may be poor indicators of range changes in tropical forest cover.…”

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confidence: 99%

The role of Pleistocene refugia and rivers in shaping gorilla genetic diversity in central Africa

Anthony

Johnson-Bawe

Jeffery

et al. 2007

Proc. Natl. Acad. Sci. U.S.A.

178

196

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The role of Pleistocene forest refugia and rivers in the evolutionary diversification of tropical biota has been the subject of considerable debate. A range-wide analysis of gorilla mitochondrial and nuclear variation was used to test the potential role of both refugia and rivers in shaping genetic diversity in current populations. Results reveal strong patterns of regional differentiation that are consistent with refugial hypotheses for central Africa. Four major mitochondrial haplogroups are evident with the greatest divergence between eastern (A, B) and western (C, D) gorillas. Coalescent simulations reject a model of recent east-west separation during the last glacial maximum but are consistent with a divergence time within the Pleistocene. Microsatellite data also support a similar regional pattern of population genetic structure. Signatures of demographic expansion were detected in eastern lowland (B) and Gabon/Congo (D3) mitochondrial haplogroups and are consistent with a history of postglacial expansion from formerly isolated refugia. Although most mitochondrial haplogroups are regionally defined, limited admixture is evident between neighboring haplogroups. Mantel tests reveal a significant isolation-bydistance effect among western lowland gorilla populations. However, mitochondrial genetic distances also correlate with the distance required to circumnavigate intervening rivers, indicating a possible role for rivers in partitioning gorilla genetic diversity. Comparative data are needed to evaluate the importance of both mechanisms of vicariance in other African rainforest taxa.control region ͉ mitochondrial ͉ phylogeography ͉ refugium M echanisms underlying evolutionary diversification in tropical forests have intrigued biologists for more than a century. Numerous hypotheses have been proposed (1-2), of which the Pleistocene forest refugium and riverine barrier hypotheses have provoked considerable interest and controversy (3-7). Whereas most studies have focused on the Amazon and Australian wet tropics (5,(8)(9)(10), data on central African rainforest taxa remain relatively sparse.According to Pleistocene refuge theory, forest fragmentation during glacial maxima led to the isolation and subsequent diversification of forest-associated taxa (3). During periods of climate amelioration and population expansion, zones of secondary contact may have also formed between neighboring refugial populations. Although palynological and biogeographical data have been used to infer forest refugia (11-16), their precise location and role in Pleistocene diversification is controversial. Several molecular studies suggest that refugia may have played an important role in structuring montane birds (17-19), primates (20-22), and trees (23). However, other forest species such as chimpanzees (24-26) and elephants (27,28) show relatively weak regional genetic structure, suggesting that wideranging and/or savannah-tolerant species may be poor indicators of range changes in tropical forest cover. One criticism of the Pleistocene...

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“…For both Gorillas (Gorilla gorilla; [45,46]) and Mandrills (Mandrillus sphinx; [47]) phylogeographic studies based on mtDNA (for both species) and microsatellite (only for Gorilla) markers have shown that rivers hamper gene flow among populations and have a major role in partitioning the species diversity. For Mandrills, the Ogooué river (Gabon) separates populations in Cameroon and northern Gabon from those in southern Gabon [47].…”

Section: Rivers Are Playing a Major Role In Genetic Differentiation Fmentioning

confidence: 99%

“…For Mandrills, the Ogooué river (Gabon) separates populations in Cameroon and northern Gabon from those in southern Gabon [47]. For Gorilla, rivers are more permeable and allow limited admixture among populations separated by waterways [45].…”

Section: Rivers Are Playing a Major Role In Genetic Differentiation Fmentioning

confidence: 99%

“…As described above, problems related to sampling were well circumvented with animals. Indeed, by using shed hair or feces, which are non invasive methods of sampling, phylogenetic analyses have allowed a better understanding of the evolutionary history of gorillas [46] mandrills [47] or elephants [48]. Equally, a number of simian viruses have been characterized in fecal samples, which is more convenient, especially in case of wild-living primates.…”

Section: Opportunities and Challengesmentioning

confidence: 99%

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Application of PCR Technologies to Humans, Animals, Plants and Pathogens from Central Africa

Odile¹,

Migot-Nabias²,

Born³

et al. 2012

Polymerase Chain Reaction

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Molecular evidence for deep phylogenetic divergence in Mandrillus sphinx

Cited by 86 publications

References 23 publications

Sex-Linked Inheritance in Macaque Monkeys: Implications for Effective Population Size and Dispersal to Sulawesi

Sex-Linked Inheritance in Macaque Monkeys: Implications for Effective Population Size and Dispersal to Sulawesi

The role of Pleistocene refugia and rivers in shaping gorilla genetic diversity in central Africa

Application of PCR Technologies to Humans, Animals, Plants and Pathogens from Central Africa

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