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Past climate changes, population dynamics and the origin of Bison in Europe
The paleogenetic analysis of bison remains from the last 50,000 years reveals the influence of climate changes on the dynamics of the various bison populations in Europe, only one of which survived into the Holocene, where it experienced severe reductions in its genetic diversity.
The palaeogenetics of cat dispersal in the ancient world
Ancient DNA analysis of archaeological cat remains shows cats dispersed along trade routes from the Neolithic era onwards, while its gene pool shows admixture from multiple geographical sources and…
Chemical structure and antiviral activity of carrageenans from Meristiella gelidium against herpes simplex and dengue virus
Genealogical discontinuities among Etruscan, Medieval, and contemporary Tuscans.
Genetic continuity between ancient and modern populations of the same area does not seem a safe general assumption, but rather a hypothesis that, when possible, should be tested using ancient DNA analysis.
Characterization of the crustose red alga Peyssonnelia japonica (Rhodophyta, Gigartinales) and its taxonomic relationship with Peyssonnelia boudouresquei based on morphological and molecular data
Molecular phylogenetic analyses using partial 26S rDNA, rbcL, and cox2‐3 spacer DNA sequences supported the monophyly of P.’japonica and the dimensions of the vegetative and reproductive structures of Peyssonnelia’s’boudouresquei Yoneshigue described from Brazil were consistent with those of the species.
A New High-Throughput Approach to Genotype Ancient Human Gastrointestinal Parasites
The study of twenty-five 100 to 7,200 year-old archeological samples proved a PCR-based approach coupled with next-generation sequencing to perform precise taxonomic identification of parasitic helminths directly from archeological sediments to be a powerful, reliable and efficient approach for species determination.
Genetic analysis of the skeletal remains attributed to Francesco Petrarca.
Pterocladiella (Gelidiales, Rhodophyta) species of Brazil including morphological studies of Pterocladiella media and a reassessment of Pterocladiella taylorii
- Cintia Iha, Mayra Jamas, S. Guimarães, M. Fujii, D. W. Freshwater, M. C. Oliveira
- Biology, Environmental Science
- 14 July 2017
This study surveyed Pterocladiella species from Brazil using both morphological and molecular analyses and confirmed the presence of five species in Brazil: P. bartlettii, P. beachiae and P. capillacea, and a new record of P. media.
Characterization and phylogenetic affinities of the red alga Chondrophycus flagelliferus (Rhodomelaceae, Ceramiales) from Brazil on the basis of morphological and molecular evidence
This study corroborates the taxonomic decision to split Laurencia sensu lato in the genera LaurencIA, Chondrophycus and Osmundea, and indicates that chloroplast-encodedrbcL provides sufficient phylogenetic signal to infer species-level relationships within the Laurencian sensulato complex.
DNA barcoding reveals high diversity in the Gelidiales of the Brazilian southeast coast
DNA barcoding survey of Brazilian specimens of Gelidiales indicated the presence of 23 statistically robust primary species hypotheses (PSH) and confirmed the identity of six species previously cited for Brazil, while 14 species remain unidentified and require detailed morphological evaluation.