Early puberty affects in particular males in commercially farmed European fin-fish species, resulting in reduced growth and feed conversion, and the potential problem of unwanted genetic impacts on wild stocks. Controlling photoperiod can be an effective way to prevent early sexual maturation. Combining national and international resources provided the means to embark on a research program to i...

Mytilus coruscus is a significant economic species in China’s eastern coastal areas. As dioecious species, it lacks secondary sexual characteristics, which makes difficult for selective breeding. However, limited research carried out on the genetic data regarding reproductive development and gender differentiation. In current study, de novo transcriptome sequencing analyses were used to detect ...

Background: Anabolic-androgenic steroids are used at high doses by athletes for improving athletic ability, physical appearance and muscle mass. Therefore, the abuse of these steroids has been significantly increased. Many undesirable side effects of these steroids on the male reproductive function have been reported, however, little is known about their effects on sexual behavior and tissues o...

50 word max.) Gene expression in Anopheles gambiae shows a deficiency of testis expressed genes on the X chromosome associated with an excessive movement of retrogene duplication. We suggest the degeneration of sex chromosomes in this monandrous species is related to the biological and evolutionary forces of X-inactivation, dosage compensation and sexual antagonism.

Gene expression in Anopheles gambiae shows a deficiency of testis-expressed genes on the X chromosome associated with an excessive movement of retrogene duplication. We suggest that the degeneration of sex chromosomes in this monandrous species is likely the result of pressures from X inactivation, dosage compensation, and sexual antagonism.

BACKGROUND To investigate the feasibility and safety of surgical treatment for Peyronie's disease (PD) by excising and repairing plaque using autologous tunica vaginalis of testis. METHODS From March 2007 to December 2012, total 19 patients with PD underwent surgical treatment at our center. All patients had significant phallocampsis during erection. All patients complained of decreased sexua...

Coevolution between male and female traits can result from correlated responses to selection or correlated selection on genetically independent traits. This study examines the possibility that traits involved in precopulatory sexual selection may influence the evolution of traits involved in postcopulatory sexual selection due to the existence of correlated selection or correlated responses to ...

introduction: recently, a novel gene was cloned and characterized named catsper, which codes for a unique ca2+ channel that is expressed excludively in the testis. it has crucial role in sperm motility, sperm penetration into the ovum and ultimately male fertility. in the present study, we have evaluated the expression of this gene at different ages of mouse by semi-quantitative rt-pcr. materia...