Procapra przewalskii (Artiodactyla: Bovidae)

Leslie, David M.; Groves, Colin P.; Abramov, Alexei V.

doi:10.1644/860.1

Cited by 12 publications

(9 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Only around 350–400 mature individuals are thought to remain [ 1 ]. Their range exists today only in a small area surrounding Qinghai Lake [ 2 , 3 ]. This gazelle’s fate is considered to be even more precarious than the giant panda [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Irregular transcriptome reprogramming probably causes thec developmental failure of embryos produced by interspecies somatic cell nuclear transfer between the Przewalski’s gazelle and the bovine

Zuo

Gao

et al. 2014

BMC Genomics

View full text Add to dashboard Cite

BackgroundInterspecies somatic cell nuclear transfer (iSCNT) has been regarded as a potential alternative for rescuing highly endangered species and can be used as a model for studying nuclear–cytoplasmic interactions. However, iSCNT embryos often fail to produce viable offspring. The alterations in normal molecular mechanisms contributing to extremely poor development are for the most part unknown.ResultsPrzewalski’s gazelle–bovine iSCNT embryos (PBNT) were produced by transferring Przewalski’s gazelle fibroblast nuclei into enucleated bovine oocytes. The percentages of PBNT embryos that developed to morula/blastocyst stages were extremely low even with the use of various treatments that included different SCNT protocols and treatment of embryos with small molecules. Transcriptional microarray analyses of the cloned embryos showed that the upregulation of reprogramming-associated genes in bovine–bovine SCNT (BBNT) embryos was significantly higher than those observed in PBNT embryos (1527:643). In all, 139 transcripts related to various transcription regulation factors (TFs) were unsuccessfully activated in the iSCNT embryos. Maternal degradation profiles showed that 1515 genes were uniquely downregulated in the BBNT embryos, while 343 genes were downregulated in the PBNT embryos. Incompatibilities between mitochondrial DNA (mtDNA) and nuclear DNA revealed that the TOMM (translocase of outer mitochondrial membrane)/TIMM (translocase of inner mitochondrial membrane) complex-associated genes in BBNT embryos had the highest expression levels, while the PBNT embryos exhibited much lower expression rates.ConclusionsImproper degradation of maternal transcripts, incomplete activation of TFs and abnormal expression of genes associated with mitochondrial function in PBNT embryos likely contributed to incomplete reprogramming of the donor cell nuclei and therefore led to the developmental failure of these cloned embryos.Electronic supplementary materialThe online version of this article (doi:10.1186/1471-2164-15-1113) contains supplementary material, which is available to authorized users.

show abstract

Section: Introductionmentioning

confidence: 99%

Irregular transcriptome reprogramming probably causes thec developmental failure of embryos produced by interspecies somatic cell nuclear transfer between the Przewalski’s gazelle and the bovine

Zuo

Gao

et al. 2014

BMC Genomics

View full text Add to dashboard Cite

show abstract

“…Within the tribe, the genus Procapra is an ancient, monophyletic lineage endemic to Asia. Member of this group share unique characteristics, such as the females are hornless and have only rudimentary facial glands 11 12 13 . Procapra split from the Antilopini 11–12 Mya ago 11 14 .…”

mentioning

confidence: 99%

“…PG and TG are flagship ungulates on the QTP, which is characterized by high diversity and endemism of wild ungulates 12 17 18 . Habitat preferences among Procapra gazelles are distinct 13 16 . Generally, TG is considered endemic to the QTP, and lives solely in high-elevation areas (~3000–5750 m) with low temperatures, intense solar radiation, and limited oxygen availability 16 .…”

mentioning

confidence: 99%

Niche divergence accelerates evolution in Asian endemic Procapra gazelles

Jiang

Chen

et al. 2015

Sci Rep

View full text Add to dashboard Cite

Ecological niche divergence and adaptation to new environments are thought to play important roles in driving speciation. Whether recently evolved species show evidence for niche divergence or conservation is vital towards understanding the role of ecology in the process of speciation. The genus Procapra is an ancient, monophyletic lineage endemic to Asia that contains three extant species (P. gutturosa, P. przewalskii and P. picticaudata). These species mainly inhabit the Qinghai-Tibetan and Mongolian Plateaus, and today have primarily allopatric distributions. We applied a series of geographic information system–based analyses to test for environmental variation and niche divergence among these three species. We found substantial evidence for niche divergence in species’ bioclimatic preferences, which supports the hypothesis that niche divergence accelerates diversification in Procapra. Our results provide important insight into the evolutionary history of ungulates in Asia and help to elucidate how environmental changes accelerate lineage diversification.

show abstract

“…There are fixed (inferentially) heritable differences between species, but not within subspecies of the same species [29]. As noted, the two "subspecies" of Przewalski's gazelle as they were in the early 20th century were diagnosably distinct, with no overlap in the known samples, and both Groves [19] and Leslie et al [22] proposed that the gazelles might be better viewed as distinct species. However, considering the field situation we refer to the type of Przewalski's gazelle as subspecies.…”

Section: Discussionmentioning

confidence: 99%

“…We note that, under the Phylogenetic Species Concept more recently employed by Groves [21], these two "subspecies" would almost certainly rank as distinct species, in that they have nonoverlapping ranges of morphological variation [22].…”

mentioning

confidence: 90%

Subspecies in Przewalski’s gazelle Procapra przewalskii and its conservation implication

et al. 2013

Self Cite

View full text Add to dashboard Cite

Przewalski's gazelle Procapra przewalskii is an endangered species endemic to China. A question remains about subspecific variation in this species. Skulls of Przewalski's gazelle collected from its current remnant ranges around the Qinghai Lake in combination with those collected prior to the 20th century were measured and analyzed using Hierarchical Cluster Analysis in order to clarify the question. Unexpectedly, P. p. diversicornis, extirpated from its historic range, has spread to the Qinghai Lake region where it has replaced nominotypical P. p. przewalskii and is now restricted to a few small isolated populations around the lake. We discuss the causes of this unexpected replacement. In this study, we discuss the possibility of a new form, possibly a new subspecies, in the Guide Basin, adjacent to Qinghai Lake; it is unclear whether the new form has long existed and was only discovered in recent years, or whether it evolved in recent times due to the geographical isolation and anthropogenic landscape features. The study sheds light on the processes of microevolution and subspeciation in Procapra przewalskii, and based on the findings, we propose measures for conservation strategies for Przewalski's gazelle.Przewalski's gazelle, Procapra przewalskii, the Qinghai Lake, skull, Procapra przewalskii wayu, evolutionarily significant units

show abstract

Procapra przewalskii (Artiodactyla: Bovidae)

Cited by 12 publications

References 39 publications

Irregular transcriptome reprogramming probably causes thec developmental failure of embryos produced by interspecies somatic cell nuclear transfer between the Przewalski’s gazelle and the bovine

Irregular transcriptome reprogramming probably causes thec developmental failure of embryos produced by interspecies somatic cell nuclear transfer between the Przewalski’s gazelle and the bovine

Niche divergence accelerates evolution in Asian endemic Procapra gazelles

Subspecies in Przewalski’s gazelle Procapra przewalskii and its conservation implication

Contact Info

Product

Resources

About