Mitochondrial DNA variation analysis suggests extreme low genetic diversity in Guizhou snub-nosed monkeys (Rhinopithecus brelichi)

Pan, Huijuan; Shi, Fanglei; Chang, ZongFei; Xiang, Zuofu; Sun, Tingting; Liu, Zhijin; Li, Ming

doi:10.1007/s11434-011-4522-2

Cited by 12 publications

(5 citation statements)

References 13 publications

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“…research may contribute to making effective management decisions. Though the population size of golden snub-nosed is largest among the snub-nosed monkeys [65], as a flagship endangered species, it is also important to keep genetic health other than population increase [66].…”

Section: Discussionmentioning

confidence: 99%

MHC II DRB variation and trans-species polymorphism in the golden snub-nosed monkey (Rhinopithecus roxellana)

Luo

Pan

2013

Chin. Sci. Bull.

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Genetic variation is generally believed to be important in studying endangered species' adaptive potential. Early studies assessed genetic diversity using nearly neutral markers, such as microsatellite loci and mitochondrial DNA (mtDNA), which are very informative for phylogenetic and phylogeographic reconstructions. However, the variation at these loci cannot provide direct information on selective processes involving the interaction of individuals with their environment, or on the capability to resist continuously evolving pathogens and parasites. The importance of genetic diversity at informative adaptive markers, such as major histocompatibility complex (MHC) genes, is increasingly being realized, especially in endangered, isolated species. Small population size and isolation make the golden snub-nosed monkey (Rhinopithecus roxellana) particularly susceptible to genetic variation losses through inbreeding and restricted gene flow. In this study, we compared the genetic variation and population structure of microsatellites, mtDNA, and the most relevant adaptive region of the MHC II-DRB genes in the golden snub-nosed monkey. We examined three Chinese R. roxellana populations and found the same variation patterns in all gene regions, with the population from Shennongjia population, Hubei Province, showing the lowest polymorphism among three populations. Genetic drift that outweighed balancing selection and the founder effect in these populations may explain the similar genetic variation pattern found in these neutral and adaptive genes.

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Section: Discussionmentioning

confidence: 99%

MHC II DRB variation and trans-species polymorphism in the golden snub-nosed monkey (Rhinopithecus roxellana)

Luo

Pan

2013

Chin. Sci. Bull.

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“…Loss of genetic diversity has been considered a crucial genetic factor that tends to produce inbreeding depression, reduced adaptation and fitness, and a decrease in the longterm species survival [22][23][24]. The assessment of genetic diversity of populations is important for planning conservation strategies for endangered species, and it is often neces- sary to investigate the causes of low levels of genetic variation in populations.…”

Section: Discussionmentioning

confidence: 99%

Microsatellite and mitochondrial DNA assessment of the genetic diversity of captive Saiga antelopes (Saiga tatarica) in China

Zhao

Liu

et al. 2013

Chin. Sci. Bull.

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To estimate the genetic diversity of the only captive Saiga antelope (Saiga tatarica) population in China, 40 umbilical cord samples were collected and mitochondrial (control region) and nuclear (microsatellite) variabilities were assessed. Both of the markers revealed low genetic variability (or high genetic homogeneity) within the population. The microsatellites yielded monitoring ranges of 2-6 alleles. The observed heterozygosities ranged from 0.28 to 0.83, and the expected heterozygosities were between 0.27 and 0.71. The Shannon information index (Shannon I) and Polymorphic Information Content (PIC) presented overall means of 0.87 and 0.43, respectively. The gene diversity was 0.49. We found only two haplotypes in the population, and the haplotype and nucleotide diversities were 39.1% and 1.13%, respectively. Founder events, bottlenecks and inbreeding have contributed to the low genetic variation observed in this population. Our findings revealed the extent of genetic diversity maintained in the present population and the urgency of implementing a protection plan, introducing animals from other populations to enhance saiga's genetic variation.Saiga tatarica, microsatellite, mitochondrial DNA, genetic diversity, bottleneck Citation:Zhao S S, Xu C Q, Liu G, et al. Microsatellite and mitochondrial DNA assessment of the genetic diversity of captive Saiga antelopes (Saiga tatarica) in

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“…Probabilities for range expansion are now hampered in the current islands of Southeast Asia, sustaining populations in situ is becoming the only option [47]. Currently, conservationists are paying more attention to in situ small and fragmented populations of species, as these are the ones at the greatest risk of extirpation [53][54][55][56][57][58][59]. Specifically, small isolated populations are sensitive to genetic erosion.…”

Section: Conservation Implicationsmentioning

confidence: 99%

Molecular demographic history of the Hainan Peacock Pheasant (Polyplectron katsumatae) and its conservation implications

et al. 2013

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Knowledge of the historical responses of animal species to climate changes is critical for understanding their evolutionary history and conservation. During the late Quaternary period, Southeast Asia had a larger land area than today due to lower sea levels, and its terrestrial landscape was covered by extensive forests and savannah. To date, however, the general fluctuations in landscape distribution and their impacts on the demographics history of native species during the late Quaternary periods are still disputed. Specifically, the responses of animals on Hainan Island, which is located in the northernmost region of Southeast Asia, to historical climate changes, are poorly understood. Here, we performed a series of demographic analyses based on mitochondrial DNA genes to examine the response of the resident Hainan Peacock Pheasant (Polyplectron katsumatae) to climate change. Unlike the pattern of population collapse during the ice age and expansion during the warming period, we detected a historical expansion pattern in the demographic history of Hainan Peacock Pheasant through the late Quaternary period. It was concluded that the Hainan Peacock Pheasant survived through the late Quaternary periods, despite of its currently limited distribution and population size on Hainan Island. Anthropogenic influences must be considered in conservation planning due to their impacts on currently fragmented habitats and populations. phylogeography, Quaternary, Hainan Island, Polyplectron katsumatae, conservation Citation:Chang J, Chen D, Liang W, et al. Molecular demographic history of the Hainan Peacock Pheasant (Polyplectron katsumatae) and its conservation implications.

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Mitochondrial DNA variation analysis suggests extreme low genetic diversity in Guizhou snub-nosed monkeys (Rhinopithecus brelichi)

Cited by 12 publications

References 13 publications

MHC II DRB variation and trans-species polymorphism in the golden snub-nosed monkey (Rhinopithecus roxellana)

MHC II DRB variation and trans-species polymorphism in the golden snub-nosed monkey (Rhinopithecus roxellana)

Microsatellite and mitochondrial DNA assessment of the genetic diversity of captive Saiga antelopes (Saiga tatarica) in China

Molecular demographic history of the Hainan Peacock Pheasant (Polyplectron katsumatae) and its conservation implications

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