Molecular Systematic and Genetic Diversity

A special issue of Diversity (ISSN 1424-2818).

Deadline for manuscript submissions: closed (15 April 2013) | Viewed by 7971

Special Issue Editor


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Guest Editor
Department of Organismic Biology, University of Salzburg, Hellbrunnerstrasse 34, A-5020 Salzburg, Austria
Interests: plant systematics & phylogenetics; conservation genetics; molecular ecology; molecular markers in ecology and biosystematics; genetic diversity in natural populations; species diversity; arctic and alpine plants; diversity & global change

Special Issue Information

Dear Colleagues,

Molecular data have become indispensible in many fields of biological research. Starting with the accessibility of PCR-methods as well as DNA-sequencing technologies, molecular data have had profound impact. Moreover, reductions of lab costs and availability of new sequencing technologies is no longer a severe limitation in producing molecular data, in contrary, sequencing whole genomes is a matter of few weeks.

This special issue intends to highlight studies dealing with molecular systematic and genetic diversity in Biosystematics, Biodiversity Research, Biogeography, Ecology and Evolution. We intend to put together strong studies that study genetic variation of organisms on local to global scale, evaluate phylogenetical variation in a biosystematical or biogeographical context, focus on evolutionary responses related to genetic variation of populations and species, study adaptive versus neutral genetical variation, or apply genetic diversity measurements in a phylogeographical, ecological or conservation biological context. Apart from theoretical or methodological oriented studies, both, basic research and applied studies are welcome from all groups of organisms.

Dr. Andreas Tribsch
Guest Editor

Manuscript Submission Information

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Published Papers (1 paper)

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Research

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Article
Molecular Identification and Historic Demography of the Marine Tucuxi (Sotalia guianensis) at the Amazon River’s Mouth by Means of Mitochondrial Control Region Gene Sequences and Implications for Conservation
by Manuel Ruiz-García, David Mejia, Pablo Escobar-Armel, Daniela Tejada-Martínez and Joseph Mark Shostell
Diversity 2013, 5(4), 703-723; https://doi.org/10.3390/d5040703 - 25 Sep 2013
Cited by 2 | Viewed by 7637
Abstract
In 2005, three fishermen, with artisan fishing vessels and drift gillnets, accidentally captured around 200 dolphins between Vigia and Salinópolis in the Amazon River estuary. The dolphins died and they then prepared their vaginas and penises in order to sell them in the [...] Read more.
In 2005, three fishermen, with artisan fishing vessels and drift gillnets, accidentally captured around 200 dolphins between Vigia and Salinópolis in the Amazon River estuary. The dolphins died and they then prepared their vaginas and penises in order to sell them in the Ver-ao-Peso market in the city of Belem within the Brazilian state of Pará. We randomly sampled a minimal quantity of tissue of these sexual organs from 78 of these 200 dolphins and we determined the following results after sequencing 689 base pairs (bp) from the mitochondrial control region gene: (1) 96.15% (75/78) of these dolphins belonged to the species Sotalia guianensis. The other species detected were Steno brenadensis, Stenella coeruleoalba and Tursiops truncatus; (2) The levels of gene diversity found in this sample of S. guianensis were high (33 haplotypes, haplotype diversity of 0.917 and nucleotide diversity of 0.0045) compared to gene diversities found in other Brazilian S. guianensis locations; (3) All the population genetics methods employed indicated a clear population expansion in this population. This population expansion could have begun 400,000 years ago; (4) The haplotype divergence within this population could have begun around 2.1 millions of years ago (MYA), with posterior splits around 2.0–1.8 MYA, 1.7–1.8 MYA, 1–1.5 MYA, 0.6–0.8 MYA, 0.4–0.2 MYA and 0.16–0.02 MYA, all during the Pleistocene. Full article
(This article belongs to the Special Issue Molecular Systematic and Genetic Diversity)
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