Evolution of the vertebrate epididymis.
Evolution of the vertebrate epididymis.
复制标题
脊椎动物附睾的进化。
DOI：
10.1007/978-1-4615-0679-9_2
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
R. Jones
中科院分区：
文献类型：
--
作者：
R. Jones
This review examines the structure and function of the extratesticular sperm ducts of vertebrates in terms of their evolutionary development and adaptive significance. The primitive extratesticular duct system of Chondrichthyes is described as an example of the vertebrate archetype. Adaptations of the duct system in higher vertebrates have involved a loss of some structures and specialization of others. The duct system probably evolved as a homeostatic mechanism to facilitate fertilization and some embryological development under conditions protected from the external environment. However, it is argued that the ducts also play an important role in the competition between males to achieve paternity. In vertebrates that practise internal fertilization the ducts are involved in post-testicular maturation and storage of spermatozoa. The biological significance of post-testicular sperm maturation has not been resolved. By contrast, sperm storage is essential in most male vertebrates because of the slow rate of spermatogenesis, particularly in ectotherms. Sperm storage is also important in the competition between males for paternity as it enables a male to mate a 'partner' a number of times during an oestrus in order to reduce the prospect of being cuckolded by another male. The extent of sperm maturation and storage in the epididymis of particular vertebrates depends on the relative roles of the testis and its extragonadal ducts in the competition between males for paternity. These roles depend on a number of factors, including allometric limitations to testis size, metabolic rate and the development of endothermy, and the reproductive strategy of females of the species.
影响因子：
3.6
作者：
Alan D. Jenkins;Claude Lechene;Stuart S. Howards
通讯作者：
Alan D. Jenkins;Claude Lechene;Stuart S. Howards
雄性山羊生殖组织中雄激素和雌激素受体的免疫定位：雌激素受体在传出小管上皮中的独特分布。
影响因子：
3.6
作者：
Goyal,HO;Bartol,FF;Wiley,AA;Neff,CW
通讯作者：
Neff,CW
附睾在腹部温度下储存可减少仓鼠精子获能所需的时间。
DOI：
10.1530/jrf.0.0910403
发表时间：
1991
期刊：
Journal of reproduction and fertility
影响因子：
--
作者：
Bedford,JM;Yanagimachi,R
通讯作者：
Yanagimachi,R