scholarly journals Family names and the length of the Y chromosome in Brazilian blacks

1997 ◽  
Vol 20 (1) ◽  
pp. 93-96 ◽  
Author(s):  
Ana A.L. Barbosa ◽  
Iglenir J. Cavalli ◽  
Kiyoko Abé ◽  
Maria G. Santos ◽  
Eliane S. Azevêdo
Keyword(s):  
Y Chromosome ◽  
Quantitative Method ◽  
Northeastern Brazil ◽  
European Origin ◽  
Heterochromatic Segment ◽  
Family Names ◽  
South Brazil ◽  
Human Y Chromosome

The variability of the lengths of the heterochromatic and euchromatic segments of the human Y chromosome was studied by a quantitative method of densitometric measurement in 60 normal and unrelated black individuals (30 with and 30 without devotional surnames), living in Salvador, Bahia, northeastern Brazil. Thirty normal and unrelated Caucasian individuals of European origin, living in Curitiba, Paraná, south Brazil, were included as controls. The heterochromatic segment and total Y chromosome lengths were greater in caucasians than in blacks without devotional surnames, and these were greater than in blacks with devotional surnames. These findings are in agreement with previous reports of a higher percentage of black ancestry in blacks carrying devotional surnames than those carrying non-devotional ones.

scholarly journals Morphological dimorphism in the Y chromosome of "pé-duro" cattle in the Brazilian State of Piauí

1999 ◽  
Vol 22 (3) ◽  
pp. 369-373 ◽  
Author(s):  
Carmen M.C. Britto ◽  
Maria Luiza S. Mello
Keyword(s):  
Y Chromosome ◽  
Coat Color ◽  
Bos Taurus ◽  
Chromosome Morphology ◽  
Northeastern Brazil ◽  
Zebu Cattle ◽  
European Origin ◽  
Brazilian State ◽  
Y Chromosomes ◽  
Bos Taurus Indicus

"Pé-duro" (hard foot) is a rare breed of beef cattle of European (Bos taurus taurus) origin, originated in northern and northeastern Brazil. Y chromosome morphology, outer genital elements and other phenotypic characteristics were examined in 75 "pé-duro" bulls from the Empresa Brasileira de Pesquisa Agropecuária (Embrapa) herd in the Brazilian State of Piauí. The purpose was to investigate possible racial contamination with Zebu animals (Bos taurus indicus) in a cattle that has been considered closest to its European origin (B. t. taurus). The presence of both submetacentric and acrocentric Y chromosomes, typical of B. t. taurus and B. t. indicus, respectively, and the larger preputial sheath in bulls with an acrocentric Y chromosome indicated racial contamination of the "pé-duro" herd with Zebu cattle. Phenotypic parameters involving horn, dewlap, ear, chamfer, and coat color characteristics, indicative of apparent racial contamination, were not associated with acrocentric Y chromosome.

scholarly journals Association of the Human Y Chromosome with Cholesterol Levels in the General Population

2004 ◽  
Vol 24 (2) ◽  
pp. 308-312 ◽  
Author(s):  
Fadi J. Charchar ◽  
Maciej Tomaszewski ◽  
Beata Lacka ◽  
Jaroslaw Zakrzewski ◽  
Ewa Zukowska-Szczechowska ◽  
...  
Keyword(s):  
General Population ◽  
Y Chromosome ◽  
Cholesterol Levels ◽  
Human Y Chromosome

scholarly journals A Back Migration from Asia to Sub-Saharan Africa Is Supported by High-Resolution Analysis of Human Y-Chromosome Haplotypes

2002 ◽  
Vol 70 (5) ◽  
pp. 1197-1214 ◽  
Author(s):  
Fulvio Cruciani ◽  
Piero Santolamazza ◽  
Peidong Shen ◽  
Vincent Macaulay ◽  
Pedro Moral ◽  
...  
Keyword(s):  
High Resolution ◽  
Y Chromosome ◽  
Sub Saharan Africa ◽  
High Resolution Analysis ◽  
Resolution Analysis ◽  
Sub Saharan ◽  
Human Y Chromosome

DA/DAPI-Fluorescent heteromorphism of human Y chromosome

1988 ◽  
Vol 79 (1) ◽  
pp. 36-38 ◽  
Author(s):  
M. S. Lin ◽  
A. Zhang ◽  
M. G. Wilson ◽  
A. Fujimoto
Keyword(s):  
Y Chromosome ◽  
Human Y Chromosome

Human Y chromosome isn't wasting away

Lab Animal ◽  
2012 ◽  
Vol 41 (4) ◽  
pp. 89-89
Author(s):  
Monica Harrington
Keyword(s):  
Y Chromosome ◽  
Human Y Chromosome

Additional deletion in sex-determining region of human Y chromosome resolves paradox of X,t(Y;22) female

Nature ◽  
1990 ◽  
Vol 346 (6281) ◽  
pp. 279-281 ◽  
Author(s):  
David C. Page ◽  
Elizabeth M. C. Fisher ◽  
Barbara McGillivray ◽  
Laura G. Brown
Keyword(s):  
Y Chromosome ◽  
Human Y Chromosome

scholarly journals A Short Tandem Repeat–Based Phylogeny for the Human Y Chromosome

2000 ◽  
Vol 67 (1) ◽  
pp. 182-196 ◽  
Author(s):  
Peter Forster ◽  
Arne Röhl ◽  
Petra Lünnemann ◽  
Catrin Brinkmann ◽  
Tatiana Zerjal ◽  
...  
Keyword(s):  
Y Chromosome ◽  
Tandem Repeat ◽  
Short Tandem Repeat ◽  
Human Y Chromosome ◽  
Short Tandem
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