Genetic variation of southern hemisphere fur seals (Arctocephalus spp.): investigation of population structure and species identity

Article Abstract:

Patterns of molecular evolution and population substructure were found among four congeneric fur seals. Low levels of sequence diversity and reciprocal paraphyly were observed from combined samples of Subantarctic and Antarctic species. Australian and Cape fur seal subspecies exhibited low levels of sequence diversity but showed significant differences in the regional distribution of halotypes. High levels of average sequence diversity was observed in New Zealand fur seals.

Natural history, Phylogeny, Population genetics, Seals (Animals), Southern Hemisphere

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A comprehensive and validated molecular taxonomy of beaked Whales, family Ziphiidae

Article Abstract:

The study presents a comprehensive and validate mitochondrial DNA (mtDNA) reference database of control region and cytochrome b sequences for beaked whales. Based on the experience with this family and the other Cetacea, as a whole, molecular taxonomy should consider components such as comprehensiveness, validation, locus sensitivity, genetic distinctiveness and exclusivity, concordance, and universal accessibility.

Analysis, Beaked whales, Molecular systematics

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Significant variation for fitness impacts of ETS loci in hybrids between populations of Tigriopus californicus

Article Abstract:

A study on the effects of electron transport system (ETS) loci on hybrid viability is presented. Results revealed that minor changes in the environment significantly altered the impact of ETS loci on hybrid fitness.

Electron transport, Crustacea, Crustaceans, Fitness (Genetics)

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