Mitochondrial DNA diversity of the vulnerable Chinese Egret (Egretta eulophotes) from China

Zhou, Xiaoping; Fang, Wenzhen; Chen, Xiaolin

doi:10.1007/s10336-009-0470-7

Cited by 14 publications

(8 citation statements)

References 25 publications

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“…All tests and analysis supported our hypothesis about the demography history of the newly described groups ‘A’ and ‘B’, indicating the rapid and sudden expansion of group ‘A’. Similar results were found for the Chinese Egret ( Egretta eulophotes) [ 66 ] and the Japanese Wood Pigeon ( Columba janthina ) [ 48 ].…”

Section: Discussionsupporting

confidence: 82%

MtDNA genetic diversity and structure of Eurasian Collared Dove (Streptopelia decaocto)

et al. 2018

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The Eurasian Collared Dove (Streptopelia decaocto) is one of the most successful biological invaders among terrestrial vertebrates. However, little information is available on the genetic diversity of the species. A total of 134 Eurasian Collared Doves from Europe, Asia and the Caribbean (n = 20) were studied by sequencing a 658-bp length of mitochondrial DNA (mtDNA) cytochrome oxidase I (COI). Fifty-two different haplotypes and relatively high haplotype and nucleotide diversities (Hd±SD = 0.843±0.037 and π±SD = 0.026±0.013) were detected. Haplotype Ht1 was particularly dominant: it included 44.03% of the studied individuals, and contained sequences from 75% of the studied countries. Various analyses (FST, AMOVA, STRUCTURE) distinguished 2 groups on the genetic level, designated ‘A’ and ‘B’. Two groups were also separated in the median-joining network and the maximum likelihood tree. The results of the neutrality tests were negative (Fu FS = -25.914; Tajima D = -2.606) and significantly different from zero (P≤0.001) for group A, whereas both values for group B were positive (Fu FS = 1.811; Tajima D = 0.674) and not significant (P>0.05). Statistically significant positive autocorrelation was revealed among individuals located up to 2000 km apart (r = 0.124; P = 0.001). The present results provide the first information on the genetic diversity and structure of the Eurasian Collared Dove, and can thereby serve as a factual and comparative basis for similar studies in the future.

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Section: Discussionsupporting

confidence: 82%

MtDNA genetic diversity and structure of Eurasian Collared Dove (Streptopelia decaocto)

et al. 2018

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“…Levels of nuclear and mitochondrial diversity in the great egret populations are comparable with those reported in the few previous studies on ardeids. For example, mean nuclear diversity in the present study ( π = 0.006, N = 200) was similar to that of the near threatened reddish egret, Egretta rufescens ( π = 0.005, N = 149) (Bates et al ., ), but lower than that found for the vulnerable Chinese egret, Egretta eulophotes (N= 90) (Zhou et al ., ). Ardea alba egretta exhibited similar H E at nuclear loci (Table ) to that found in the species from which these loci were isolated: the great blue heron, Ardea herodias (N = 30, mean H E = 0.61; McGuire and Noor, ).…”

Section: Discussionmentioning

confidence: 88%

“…Among waterbirds, egrets have been under-investigated with regard to population genetics. Indeed, to the best of our knowledge, only a handful of studies are available on natural populations (Bates et al, 2009;Zhou et al, 2010;Hill et al, 2012). Therefore, new studies addressing species and geographical ranges that have been unexplored thus far can contribute to understand better the nature and characteristics of processes that model the genetic structure of waterbird populations.…”

Section: Introductionmentioning

confidence: 99%

Genetic structuring among populations of the great egret, Ardea alba egretta, in major Brazilian wetlands

Corrêa

Lama

Souza

2015

Aquatic Conservation

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ABSTRACT1. Waterbirds are increasingly affected by climate change and human disturbances to the wetlands on which they roost, forage and breed. The evolutionary response of populations to such changes is influenced by genetic variability and gene flow patterns, which enable long-term survival. Thus, genetic monitoring of waterbird populations can provide valuable information to support conservation measures and management policies for wetlands.2. This study assessed past and contemporary levels of genetic diversity, estimated effective population sizes (Ne) and investigated gene flow patterns among populations of the great egret, Ardea alba egretta, settled in major Brazilian wetlands.3. Samples (N = 200) were collected from the northern, central western, south-eastern and southern regions of Brazil. AMOVA, F-statistics, assignment tests, Bayesian clustering analyses and Ne were estimated based on mitochondrial DNA (mtDNA) and microsatellite loci.4. The populations share most mitochondrial haplotypes, suggesting a common recent past. Mismatch analyses, Fs and D statistics, and SSD and Rg indices indicated significant signs of expansion in most populations. The time since expansion suggests that egrets colonized southern latitudes more recently, probably accompanying the supposed historical environmental changes in South America, with more stable habitats toward equatorial regions.5. MtDNA Ф ST revealed significant differentiation between the northern and both the central western and southern populations. Nuclear loci demonstrated significant structuring between the central western and southern populations, which showed similar effective sizes.6. Despite the considerable dispersal potential of the great egret, there is limited gene flow among populations located in different Brazilian wetlands. Therefore, colonies from different regions should be preserved, with special attention to the northern populations, whose allelic constitution differs from the other. This approach can be used to genetically monitor similar species in other wetlands or to great egret populations in other regions of the Americas.

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“…In recent years, many studies have focused on the conservation genetics and molecular ecology of this egret species. These include evaluation of genetic diversity and population structure (Zhou et al 2010), complete mitochondrial genome (Zhou et al 2014), polymorphism and selection of major complex histocompatibility (MHC) genes (Wang et al 2013), species identification (Huang et al 2012a(Huang et al , 2013, sex identification (Wang et al 2011;Huang et al 2012b), isolation of polymorphic microsatellite loci (Huang et al 2010;Dai et al 2013) and primer pairs for amplifying the complete mitochondrial DNA (Zhou et al 2008). However, many evolutionary and ecological questions regarding mating systems and kinship in this egret species remain unclear because of the lack of available genetic information.…”

Section: Introductionmentioning

confidence: 99%

Noninvasive and nondestructive sampling for avian microsatellite genotyping: a case study on the vulnerable Chinese Egret (Egretta eulophotes)

et al. 2015

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Background: Noninvasive and nondestructive DNA sampling techniques are becoming more important in genetic studies because they can provide genetic material from wild animals with less or even without disturbance, which is particularly useful for the study of endangered species, i.e., birds. However, nondestructively and noninvasively sampled DNA may, in some cases, be inadequate in the amount and quality of the material collected, which can lead to low amplification success rates and high genotyping errors. Methods:In this study, noninvasive (eggshell swab, shed feather and feces), nondestructive (plucked feather and buccal swab) and invasive (blood) DNA samples were collected from the vulnerable Chinese Egret (Egretta eulophotes). DNA concentrations, PCR amplification success and microsatellite genotyping errors of different sample types were evaluated and compared to determine whether noninvasive and nondestructive samples performed as well as invasive samples in our experimental procedures. Results:A total of 159 samples were collected in the field. Among the different sample types, the highest DNA concentrations (154.0-385.5 ng/μL) were obtained from blood. Those extracted from fecal samples were the lowest, ranging from 1.25 to 27.5 ng/μL. Almost all of the DNA samples, i.e., 95.59 %, were successfully amplified for mtDNA (n = 152) and 92.76 % of mtDNA samples were successfully genotyped for at least five of the nine microsatellite loci tested (n = 141). Blood samples and buccal swabs produced reliable genotypes with no genotyping errors, but in feces, allelic dropouts and false alleles occurred in all nine loci, with error rates ranging from 6.67 to 38.10 % for the dropouts and from 6.06 to 15.15 % for the false alleles. Conclusions:These results indicate that both nondestructive and noninvasive samplings are suitable for avian microsatellite genotyping, save for fecal DNA. However, we should remain cautious of the appearance of genotyping errors, especially when using noninvasive material.

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Mitochondrial DNA diversity of the vulnerable Chinese Egret (Egretta eulophotes) from China

Cited by 14 publications

References 25 publications

MtDNA genetic diversity and structure of Eurasian Collared Dove (Streptopelia decaocto)

MtDNA genetic diversity and structure of Eurasian Collared Dove (Streptopelia decaocto)

Genetic structuring among populations of the great egret, Ardea alba egretta, in major Brazilian wetlands

Noninvasive and nondestructive sampling for avian microsatellite genotyping: a case study on the vulnerable Chinese Egret (Egretta eulophotes)

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