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Variation in the Local Grey Mullet Populations () on the Western Pacific Fringe.
Genes (Basel)
September 2024
The Affiliated School of National Tainan First Senior High School, Tainan 701, Taiwan.
: Understanding population genetic structures is crucial for planning and implementing conservation programmes to preserve species' adaptive and evolutionary potential and thus ensure their long-term persistence. The grey mullet () is a globally distributed coastal fish. Its populations in waters surrounding Taiwan on the western Pacific fringe are divided into at least two stocks (migratory and residential), but questions remain regarding their genetic divergence and gene flow.
View Article and Find Full Text PDFEvolution of alternative reproductive systems in Bacillus stick insects.
Evolution
May 2024
Department of Ecology and Evolution, University of Lausanne, Lausanne, Switzerland.
Reproduction is a key feature of all organisms, yet the way in which it is achieved varies greatly across the tree of life. One striking example of this variation is the stick insect genus Bacillus, in which five different reproductive modes have been described: sex, facultative and obligate parthenogenesis, and two highly unusual reproductive modes: hybridogenesis and androgenesis. Under hybridogenesis, the entire genome from the paternal species is eliminated and replaced each generation by mating with the corresponding species.
View Article and Find Full Text PDFClimbing on the La Canna Volcanic Sea Stack to Obtain First-Hand Data on the Tiniest Population of the Critically Endangered Aeolian Wall Lizard .
Animals (Basel)
July 2023
Department of Health, Life and Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy.
Among the extant populations of the critically endangered Aeolian wall lizard, the most vulnerable is the one surviving on La Canna, a columnar volcanic stack off the Filicudi Island. Here, I report the results of the first climbing expedition by a biologist on La Canna, that contributed direct observations and updated information on the size, morphology, and genetic variability of this population. Lizard density at the sampling site (a small terrace at 50 m of elevation) was 1.
View Article and Find Full Text PDFA lack of population structure characterizes the invasive in West Virginia and across eastern North America.
bioRxiv
March 2023
Department of Biology, West Virginia University, 5209 Life Sciences Building, 53 Campus Drive, Morgantown, WV, USA 26506.
Invasive plant species cause massive ecosystem damage globally, yet represent powerful case studies in population genetics and rapid adaptation to new habitats. The availability of digitized herbarium collections data, and the ubiquity of invasive species across the landscape make them highly accessible for studies of invasion history and population dynamics associated with their introduction, establishment, spread, and ecological interactions. Here we focus on , one of the most damaging invasive vine species in North America.
View Article and Find Full Text PDFDNA polymorphism underlying allozyme variation at a malic enzyme locus (mMEP-2*) in Atlantic salmon (Salmo salar L.).
J Fish Biol
November 2022
Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Stirling, Scotland, UK.
A non-synonymous single nucleotide polymorphism (SNP) underlies a diallelic allozyme polymorphism at the mitochondrial NADP-dependent mMEP-2* locus in Atlantic salmon (Salmo salar L.). The resultant amino acid substitution, which alters the charge of the allelic products, matches the differential mobility of the two allozyme alleles, whereas allozyme and SNP assays revealed genotyping concordance in 257 of 258 individuals.
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