Ancient DNA Traces Extinct Caribbean “Island Murderer” Back to the Dawn of Mammals
نویسندگان
چکیده
منابع مشابه
Reproducibility of ancient DNA sequences from extinct Pleistocene fauna.
The study of DNA sequence data obtained from specimens of extinct organisms offers a window into the evolutionary past. However, this area of research is technically very challenging and is strewn with potential pitfalls. Handt et al. (1994) and others (Lindahl 1993; Paabo, Higuchi, and Wilson 1989) have emphasised the need for careful experimental design and procedure in ancient DNA work as we...
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BACKGROUND Evolutionary studies of insular biotas are based mainly on extant taxa, although such biotas represent artificial subsets of original faunas because of human-caused extinctions of indigenous species augmented by introduced exotic taxa. This makes it difficult to obtain a full understanding of the history of ecological interactions between extant sympatric species. Morphological bill ...
متن کاملExtinct 244Pu in ancient zircons.
We have found evidence, in the form of fissiogenic xenon isotopes, for in situ decay of 244Pu in individual 4.1- to 4.2-billion-year-old zircons from the Jack Hills region of Western Australia. Because of its short half-life, 82 million years, 244Pu was extinct within 600 million years of Earth's formation. Detrital zircons are the only known relics to have survived from this period, and a stud...
متن کاملMtDNA from extinct Tainos and the peopling of the Caribbean.
Tainos and Caribs were the inhabitants of the Caribbean when Columbus reached the Americas; both human groups became extinct soon after contact, decimated by the Spaniards and the diseases they brought. Samples belonging to pre-Columbian Taino Indians from the La Caleta site (Dominican Republic) have been analyzed, in order to ascertain the genetic affinities of these groups in relation to pres...
متن کاملGenetic traces of ancient demography.
Patterns of gene differences among humans contain information about the demographic history of our species. Haploid loci like mitochondrial DNA and the nonrecombining part of the Y chromosome show a pattern indicating expansion from a population of only several thousand during the late middle or early upper Pleistocene. Nuclear short tandem repeat loci also show evidence of this expansion. Both...
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ژورنال
عنوان ژورنال: Molecular Biology and Evolution
سال: 2016
ISSN: 0737-4038,1537-1719
DOI: 10.1093/molbev/msw208