Mitochondrial control region variability of baiji and the Yangtze finless porpoises, two sympatric small cetaceans in the Yangtze river

@article{Yang2010MitochondrialCR,
  title={Mitochondrial control region variability of baiji and the Yangtze finless porpoises, two sympatric small cetaceans in the Yangtze river},
  author={Guang Yang and Sha Liu and Wenhua Ren and Kaiya Zhou and Fuwen Wei},
  journal={Acta Theriologica},
  year={2010},
  volume={48},
  pages={469-483}
}
BaijiLipotes vexillifer (Miller, 1918) and the Yangtze finless porpoiseNeophocaena phocaenoides asiaeorientalis (Pilleri and Gihr, 1972) are two sympatric small cetaceans inhabiting the middle and lower reaches of the Yangtze River. In this study, a fragment (420–428 bp) of the mitochondrial control region was sequenced to provide the first comparative survey of genetic variability and population structure in these two endangered species, with samples of finless porpoises from the Yellow/Bohai… 
View on Springer
16 Citations
Background Citations
9
Methods Citations
2
Results Citations
1

Figures and Tables from this paper

16 Citations

Citation Type

Citation Type

Microsatellite variation and significant population genetic structure of endangered finless porpoises (Neophocaena phocaenoides) in Chinese coastal waters and the Yangtze River
TLDR
The results strongly support the classification of porpoises in these regions into distinct evolutionarily significant units, including at least two separate species, and therefore they should be treated as different management units in the design and implementation of conservation programmes.
Sequence Polymorphism and Geographical Variation at a Positively Selected MHC-DRB Gene in the Finless Porpoise (Neophocaena phocaenoides): Implication for Recent Differentiation of the Yangtze Finless Porpoise?
TLDR
Porpoises from the Yangtze River displayed divergent frequencies of shared and private alleles from those displayed by two marine populations, which suggest that the former riverine population has been under a different selection regime (characteristic of a fresh water environment) than that of its marine counterparts.
Mitochondrial phylogeography and population history of finless porpoises in Sino‐Japanese waters
TLDR
A low level of genetic diversity for each population and high among-population differentiation in haplotype frequency were revealed, which suggest a role for random genetic drift, recent demographic bottlenecks, and reduced or limited gene flow in these populations.
High level population differentiation of finless porpoises (Neophocaena phocaenoides) in Chinese waters revealed by sequence variability of four nuclear introns
In the present study, sequence variations at four nuclear introns which were respectively from the parathyroid hormone-like (PTH) gene, isolate Pdalz1692 interferon (IFN) gene, peripherin-like (RDS)…
Genome-Wide SNP and Population Divergence of Finless Porpoises
TLDR
Evidence is suggested that a recent subdivision of the finless porpoise into two species is possible, especially considering the significant genetic divergence between freshwater and marine porpoises, in combination with the unique distribution of Yangtze finless Porpoises in freshwater and their distinctness in physiological and morphological features.
Considerable MHC Diversity Suggests That the Functional Extinction of Baiji Is Not Related to Population Genetic Collapse
TLDR
Considerable sequence variation at the adaptive MHC genes despite of significant loss of neutral genetic variation in baiji genome might suggest that intense selection has overpowered random genetic drift as the main evolutionary forces, which suggested that the critically endangered or nearly extinct status of the baijin is not an outcome of genetic collapse.
A genomic scanning using AFLP to detect candidate loci under selection in the finless porpoise (Neophocaena phocaenoides).
TLDR
Although these loci were not supported with statistical significance in false discovery rate (FDR) analysis, the present study illustrated the potential of genome-wide surveys to identify specific genome regions or genes associated with freshwater adaptation of the finless porpoise.
Threats and opportunities for the survival of the Yangtze finless porpoise
The Yangtze finless porpoise (Neophocaena phocaenoides asiaorientalis), is a small freshwater cetacean which has recently fallen dramatically in number. It is an endemic species for the Yangtze River…
High similarity at three MHC loci between the baiji and finless porpoise: trans-species or convergent evolution?
Revision of the taxonomy of finless porpoises (genus Neophocaena): The existence of two species
TLDR
New data examining both morphological and molecular characters provided strong evidence for the existence of at least two distinct biological species, by demonstrating a lack of interbreeding in sympatry between the two major morphological forms of finless porpoises.
...
1
2
...

References

SHOWING 1-10 OF 41 REFERENCES
POPULATION GENETIC STRUCTURE OF FINLESS PORPOISES, NEOPHOCAENA PHOCAENOIDES, IN CHINESE WATERS, INFERRED FROM MITOCHONDRIAL CONTROL REGION SEQUENCES
TLDR
The genetic diversity (nucleotide diversity and haplotypic diversity) of the Yellow Sea population was significantly higher than those of the Yangtze River population and the South China Sea population, suggesting the relatively later divergence of the latter two populations and supporting theYellow Sea population as the original center of Neophocaena.
Variability of the mitochondrial control region in populations of the harbour porpoise, Phocoena, on interoceanic and regional scales
TLDR
A portion of the mitochondrial DNA control region was amplified and sequenced to characterize the amount of genetic variation within harbour porpoise populations in the Northeast Pacific, North Atlantic, and Black Sea and the utility of the control region to discriminate among putative populations along the west coast of North America was investigated.
GEOGRAPHICAL VARIATION OF EXTERNAL MEASUREMENTS AND THREE SUBSPECIES OF NEOPHOCAENA PHOCAENOIDES IN CHINESE WATERS
The finless porpoise,Neophocaena phocaenoides,is distributed in the form of a nar-row band along the coast line of tropical and temperate Asia and in the Yangtze river.The differences of external…
POPULATION STRUCTURE OF FINLESS PORPOISES (NEOPHOCAENA PHOCAENOIDES) IN COASTAL WATERS OF JAPAN BASED ON MITOCHONDRIAL DNA SEQUENCES
TLDR
It is concluded that finless porpoises in each of the 5 locations belong to distinct populations.
Population differentiation in the franciscana (Pontoporia blainvillei) from two geographic locations in Brazil as determined from mitochondrial DNA control region sequences
TLDR
Reconstruction of the phylogenetic relationships among the haplotypes through a maximum-likelihood analysis of sequences revealed two distinct lineages that were consistent with the geographic sampling patterns of the franciscana.
MITOCHONDRIAL DNA VARIATION IN THE CRITICALLY ENDANGERED VAQUITA PHOCOENA SINUS NORRIS AND MACFARLAND, 19581
TLDR
To characterize the genetic composition of the vaquita, a portion of the mitochondrial DNA control region is sequenced from 43 individuals collected between 1985 and 1993, finding a complete lack of polymorphism in the control region.
Population structure of nuclear and mitochondrial DNA variation among humpback whales in the North Pacific
TLDR
Although the two feeding grounds were not panmictic for nuclear or mitochondrial loci, estimates of long‐term migration rates suggested that male‐mediated gene flow was several‐fold greater than female gene flow, providing additional evidence for the significance of genetic management units within oceanic populations of humpback whales.
Genetic structure of harbour porpoise Phocoena phocoena populations in the northwest Atlantic based on mitochondrial and nuclear markers
The harbour porpoise, Phocoena phocoena, experiences high levels of nonnatural mortality owing to interactions with commercial fisheries throughout its range. To accurately evaluate the significance…
World‐wide genetic differentiation of Eubalaena: questioning the number of right whale species
TLDR
Diagnostic characters, as well as phylogenetic and phylogeographic analyses, support the possibility that three distinct maternal lineages exist in right whales, with North Pacific E. glacialis being more closely related to E. australis than to North Atlantic E.glacialis.
The population of finless porpoise in the middle and lower reaches of Yangtze River
Based upon the data of ecological surveys of finless porpoise, Neophocaena phoca-enoides, in the middle and lower reaches of the yangtze River and specimens collected in recent years, the current…
...
1
2
3
4
5
...