Chadic languages and Y haplogroups

Phylogenetic Tree Construction for Y-DNA Haplogroups

Male Y-chromosome is currently used to estimate the paternal ancestry and migratory patterns of humans. Y-chromosomal Short Tandem Repeat(STR) segments provide important data for reconstructing phylogenetic trees. However, STR data is not widely used for phylogeny because there is not enough appropriate methodology. We propose a three-step method for analyzing large numbers of STR data and cons...

Human Chromosome Y and Haplogroups; introducing YDHS Database

BACKGROUND As the high throughput sequencing efforts generate more biological information, scientists from different disciplines are interpreting the polymorphisms that make us unique. In addition, there is an increasing trend in general public to research their own genealogy, find distant relatives and to know more about their biological background. Commercial vendors are providing analyses of...

Y chromosome haplogroups and susceptibility to testicular cancer.

Although in the past decades much progress in testicular cancer (TC) management has been made, little is known about the possible genetic causes and molecular mechanisms involved in its aetiopathogenesis. Some studies on possible contribution of the Y chromosome in TC development have been previously published, but data are not conclusive. In particular, ethnic influence and spermatogenic activ...

Y-chromosomal Binary Haplogroups in Japanese Population and their Relationship to 16 Y-STR Polymorphisms

Y-chromosomal binary haplogroups in the Japanese population and their relationship to 16 Y-STR polymorphisms.

We investigated Y chromosomal binary and STR polymorphisms in 263 unrelated male individuals from the Japanese population and further examined the relationships between the two separate types of data. Using 47 biallelic markers we distinguished 20 haplogroups, four of which (D2b1/-022457, O3/-002611*, O3/-LINE1 del, and O3/-021354*) were newly defined in this study. Most haplogroups in the Japa...