期刊
JOURNAL OF ZOOLOGICAL SYSTEMATICS AND EVOLUTIONARY RESEARCH
卷 59, 期 8, 页码 1673-1688出版社
WILEY
DOI: 10.1111/jzs.12556
关键词
aflagellate spermatozoa; reproductive system; sperm capability; sperm competition; spermatogenesis
资金
- Italian Ministry of University (MIUR)
- Universita degli Studi di Urbino Carlo Bo within the CRUI-CARE Agreement
This study reports the presence of aflagellate spermatozoa in two species of the recently described genus Kryptodasys. The ultrastructure of these spermatozoa shows common features unique to the genus. The functional and phylogenetic significance of this aflagellate condition in the two studied taxa and other species is discussed in the context of the generally flagellate sperm in Gastrotricha.
The presence of aflagellate spermatozoa in two species of Kryptodasys (Fam. Macrodasyidae), a gastrotrich genus recently described, is reported. Their ultrastructure shows common features, which appear peculiar to the genus and different from those of male gametes of the phylogenetically unrelated Dolichodasys (Fam. Cephalodasyidae), the only other macrodasyidan genus known to have aflagellate sperm. Additional information on the ultrastructure of the genital apparatus of the two Kryptodasys species is given, which confirm the data of the originals description and the systematic delimitation of this new genus from Macrodasys, which was mainly based on the structure of the reproductive system until now. The functional and phylogenetic significance of the aflagellate condition of spermatozoa in the two taxa under study and in other species is discussed also in the light of the generally flagellate condition of functional sperm in Gastrotricha.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据