Population structure, inbreeding and stripe pattern abnormalities in plains zebras
@article{Larison2020PopulationSI, title={Population structure, inbreeding and stripe pattern abnormalities in plains zebras}, author={Brenda Larison and Christopher B. Kaelin and Ryan J. Harrigan and Corneliu Henegar and Daniel I Rubenstein and Pauline L. Kamath and Ortwin H. K. Aschenborn and Thomas B. Smith and Gregory S. Barsh}, journal={Molecular Ecology}, year={2020}, volume={30}, pages={379 - 390} }
One of the most iconic wild equids, the plains zebra occupies a broad region of sub‐Saharan Africa and exhibits a wide range of phenotypic diversity in stripe patterns that have been used to classify multiple subspecies. After decades of relative stability, albeit with a loss of at least one recognized subspecies, the total population of plains zebras has undergone an approximate 25% decline since 2002. Individuals with abnormal stripe patterns have been recognized in recent years but the…
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References
SHOWING 1-10 OF 68 REFERENCES
Extensive population genetic structure in the giraffe
- BiologyBMC Biology
- 2007
There are at least six genealogically distinct lineages of giraffe in Africa, with little evidence of interbreeding between them, and such extreme genetic subdivision within a large vertebrate with high dispersal capabilities is unprecedented and exceeds that of any other large African mammal.
Contrasting historical and recent gene flow among African buffalo herds in the Caprivi Strip of Namibia.
- Biology, MedicineThe Journal of heredity
- 2013
Historically, African buffalo moved freely throughout the Caprivi Strip, whereas recent gene flow has been more restricted, supporting efforts to maintain the connectivity of buffalo herds across this region and demonstrating the utility of contrasting genetic inferences from different time scales.
Comparative phylogeography of African savannah ungulates 1
- Environmental Science, GeographyMolecular ecology
- 2012
Data from across taxa reveal distinct regional lineages, which reflect the survival and divergence of populations in isolated savannah refugia during the climatic oscillations of the Pleistocene, and suggest a stable, long‐standing savannah refuge in the south.
A newly discovered wildlife migration in Namibia and Botswana is the longest in Africa
- Environmental ScienceOryx
- 2014
Abstract Migrations of most animal taxa are declining as a result of anthropogenic pressures and land-use transformation. Here, we document and characterize a previously unknown multi-country…
Regional Differences in Seasonal Timing of Rainfall Discriminate between Genetically Distinct East African Giraffe Taxa
- Environmental Science, BiologyPloS one
- 2013
The results suggest that selection associated with regional timing of events in the annual climatic cycle may help maintain genetic and phenotypic divergence in giraffes, and suggest that synchronization of reproduction with seasonal rainfall cycles that are geographically distinct may contribute to reproductive isolation.
Mid‐Holocene decline in African buffalos inferred from Bayesian coalescent‐based analyses of microsatellites and mitochondrial DNA
- Environmental ScienceMolecular ecology
- 2008
It is proposed that the mid‐Holocene aridification of East Africa caused a major decline in the effective population size of the buffalo, a species reliant on moist savannah habitat for its existence.
Genomic Runs of Homozygosity Record Population History and Consanguinity
- BiologyPloS one
- 2010
Genome-wide analysis of long and shorter ROH allows categorisation of the mainly indigenous populations sampled here into four major groups in which the majority of the population are inferred to have: recent parental relatedness (south and west Asians), shared parental ancestry arising hundreds to thousands of years ago through long term isolation and restricted effective population size (Ne), but little recent inbreeding (Oceanians), and the occasional cryptically inbred individual.
Are subspecies useful in evolutionary and conservation biology?
- Biology, Environmental ScienceProceedings of the Royal Society B: Biological Sciences
- 2006
It is shown that 36% of avian subspecies are, in fact, phylogenetically distinct, and the overall level of congruence between taxonomic subspecies and molecular phylogenetic data is greater than previously thought.
How the zebra got its stripes: a problem with too many solutions
- BiologyRoyal Society Open Science
- 2015
It is found that temperature successfully predicts a substantial amount of the stripe pattern variation observed in plains zebra, and it is suggested that the selective agents driving zebra striping are probably multifarious and complex.
Comparing Spatial Maps of Human Population-Genetic Variation Using Procrustes Analysis
- Environmental ScienceStatistical applications in genetics and molecular biology
- 2010
This work confirms in two scenarios, one using single-nucleotide polymorphism (SNP) data from Europe and one using SNP data worldwide, that a measurably high level of concordance exists between statistical maps of population-genetic variation and geographic maps of sampling locations.