Results 31 to 40 of about 22,741,603 (305)

X chromosome inactivation during Drosophila spermatogenesis [PDF]

, 2007
Genes with male- and testis-enriched expression are under-represented on the Drosophila melanogaster X chromosome. There is also an excess of retrotransposed genes, many of which are expressed in testis, that have “escaped” the X chromosome and moved to ...
Baines, J., Hense, Winfried, Parsch, John, John Parsch, Baines, John F., Parsch John, Hense Winfried, Baines John F, Hense, W., John F Baines, Winfried Hense, Parsch, J.   +11 more
core   +2 more sources

A model system for study of sex chromosome effects on sexually dimorphic neural and behavioral traits [PDF]

, 2002
We tested the hypothesis that genes encoded on the sex chromosomes play a direct role in sexual differentiation of brain and behavior. We used mice in which the testis-determining gene (Sry) was moved from the Y chromosome to an autosome (by deletion of ...
Robin Lovell-Badge, De Vries, Geert, Auger, CJ, Lovell-Badge, R, Catherine J. Auger, Elka M. Scordalakes, Swain, A, Simerly, Richard B., Lovell-Badge, Robin, Richard B. Simerly, Amanda Swain, Arnold, Arthur P., Simerly, RB, Burgoyne, PS, Scordalakes, Elka M., Emilie F. Rissman, Geert J. De Vries, Liang-Yo Yang, Burgoyne, Paul S., Yang, Liang-Yo, Yang, L-Y, Rissman, EF, Rissman, Emilie F., Paul S. Burgoyne, De Vries, G, Arnold, AP, Arthur P. Arnold, Scordalakes, EM, Swain, Amanda, Auger, Catherine J.   +29 more
core   +1 more source

A boy with 46,X,+mar presenting gynecomastia and short stature [PDF]

Annals of Pediatric Endocrinology & Metabolism, 2017
A 15-year-old boy was referred due to gynecomastia and short stature. He was overweight and showed the knuckle-dimple sign on the left hand, a short fourth toe on the left foot, and male external genitalia with a small phallus.
Ki Eun Kim, Ye Jin Kim, Mo Kyoung Jung, Hyun-Wook Chae, Ah Reum Kwon, Woo Jung Lee, Duk-Hee Kim, Ho-Seong Kim   +7 more
doaj   +1 more source

Y/X-Chromosome-Bearing Sperm Shows Elevated Ratio in the Left but Not the Right Testes in Healthy Mice

Life, 2021
The sex chromosomes play central roles in determining the sex of almost all of the multicellular organisms. It is well known that meiosis in mammalian spermatogenesis produces ~50% Y- and ~50% X-chromosome-bearing sperm, a 1:1 ratio. Here we first reveal
Chengqing Hu, Jiangcheng Shi, Yujing Chi, Jichun Yang, Qinghua Cui   +4 more
doaj   +1 more source

Ancient Migratory Events in the Middle East: New Clues from the Y-Chromosome Variation of Modern Iranians [PDF]

, 2012
Knowledge of high resolution Y-chromosome haplogroup diversification within Iran provides important geographic context regarding the spread and compartmentalization of male lineages in the Middle East and southwestern Asia.
Baharak Hooshiar Kashani, Achilli Alessandro, Mohammad Hossein Sanati (150527), Massoud Houshmand, Mohammad Hossein Sanati, Houshmand M, Torroni Antonio, Viola Grugni, Al-Zahery Nadia, Francesca Gandini (150515), Anna Olivieri, Nadia Al-Zahery (150508), Sanati, Mohammad Hossein, Antonio Torroni (42164), Gandini, Francesca, Vincenza Battaglia (150500), Battaglia Vincenza, Torroni, Antonio, Massoud Houshmand (150522), Hooshiar Kashani, Baharak, Houshmand, Massoud, Grugni Viola, Olivieri Anna, Grugni, Viola, Ornella Semino (150533), Hossein Sanati M, Baharak Hooshiar Kashani (144912), Hooshiar Kashani Baharak, Anna Olivieri (144908), Sanati Mohammad Hossein, Al-Zahery, Nadia, Nadia Al-Zahery, Parolo Silvia, Vincenza Battaglia, Antonio Torroni, Ornella Semino, Gandini Francesca, Battaglia, Vincenza, Houshmand Massoud, Parolo, Silvia, Achilli, Alessandro, Semino, Ornella, Francesca Gandini, Alessandro Achilli (42157), Semino Ornella, Silvia Parolo, Viola Grugni (150495), Alessandro Achilli, Olivieri, Anna, Silvia Parolo (150504)   +49 more
core   +1 more source

The genetic and cultural impact of the Steppe migration into Europe

Annals of Human Biology, 2021
Background During the early 3rd millennium BCE migration from Pontic Steppe, mainly related to Yamnaya culture, has affected European populations both culturally and genetically, however, it has long been debated to what extent this migration was male ...
Gabriele Scorrano, Fulya Eylem Yediay, Thomaz Pinotti, Motahareh Feizabadifarahani, Kristian Kristiansen   +4 more
doaj   +1 more source

THE Y CHROMOSOME OF DROSOPHILA PSEUDOOBSCURA [PDF]

Genetics, 1935
Uploaded by Plazi for TaxoDros. We do not have abstracts.
openaire   +4 more sources

A genetic basis for a postmeiotic X versus Y chromosome intragenomic conflict in the mouse. [PDF]

, 2012
Intragenomic conflicts arise when a genetic element favours its own transmission to the detriment of others. Conflicts over sex chromosome transmission are expected to have influenced genome structure, gene regulation, and speciation.
Shantha K. Mahadevaiah (94714), Nabeel A. Affara (135531), Vaiman, Daniel, Julie Cocquet, Nabeel A Affara, Burgoyne, Paul S., Daniel Vaiman, Cocquet, Julie, Affara, Nabeel A., Julie Cocquet (135523), Mahadevaiah, Shantha K., Ellis, Peter J.I., Peter J I Ellis, Shantha K Mahadevaiah, Daniel Vaiman (83223), Paul S. Burgoyne (94717), Peter J. I. Ellis (135526), Paul S Burgoyne, Ellis Peter J. I., Cocquet Julie, Affara Nabeel A., Mahadevaiah Shantha K., Burgoyne Paul S., Vaiman Daniel   +23 more
core   +1 more source

Complete or partial loss of the Y chromosome in an unselected cohort of 865 non-vasectomized, azoospermic men

Basic and Clinical Andrology, 2023
Background Structural abnormalities as well as minor variations of the Y chromosome may cause disorders of sex differentiation or, more frequently, azoospermia.
J Fedder, C Fagerberg, MW Jørgensen, CH Gravholt, A Berglund, UB Knudsen, A Skakkebæk   +6 more
doaj   +1 more source

The Y chromosome

Reproductive BioMedicine Online, 2002
The Y chromosome has evolved to provide sex determination in mammals. In association with its evolution, genes important for spermatogenesis have been sequestered on this chromosome. Further, X chromosome inactivation has developed as a mechanism to prevent over-expression of genetic factors important for somatic function in females, with maintenance ...
openaire   +2 more sources