水生生物学报2018，Vol.42Issue(6)：1194-1202,9.DOI:10.7541/2018.146
西藏双须叶须鱼性腺发育的组织学观察
HISTOLOGICAL STUDIES ON GONADAL DEVELOPMENT IN THE ENDEMIC TIBETAN FISH PTYCHOBARBUS DIPOGON
摘要
Abstract
The histology of gonadal development in Ptychobarbus dipogon was studied by using conventional paraffin sections and HE staining,in order to obtain information on its reproductive systems useful for its artificial breeding.The results showed that the development of oocytes can be divided into five phases,and ovarian development can be divided into six stages.In stage V ovaries,ovum worship was found to occur,indicated by the 1.38∶1 ratio of small ova to large ova.Phase 3 oocytes were characterized by appearance of yolk granules and follicles;phase 4 oocytes by rapid increase of yolk granules,and the movement of the nucleus toward the animal poles;phase 5 by the fusion of yolk granules,and the separation of oocytes from follicular membranes to float in the ovarian cavity.Male P.dipogen had lobular testes,and their germ cells can be categorized into spermatogonia,spermatocytes;spermatids;and spermatozoa.Their testes also developed in six stages.The species followed a batch-synchronous spawning pattern.关键词
双须叶须鱼/性腺发育/组织结构/产卵类型Key words
Ptychobarbus dipogon/Gonadal development/Histological structure/Spawning pattern分类
农业科技引用本文复制引用
曾本和,饶昌伟,刘海平..西藏双须叶须鱼性腺发育的组织学观察[J].水生生物学报,2018,42(6):1194-1202,9.基金项目
Supported by the Key R&D and Transformation Plans Tibet Autonomous Region Science and Technology Agency (XZ201801NB12),the Funds for Agricultural Science,Technology and Services of Tibet Autonomous Region Finance Department (2018SFTG01),the Special Finance of Tibet Autonomous Region (2017CZZX004,2017CZZX003 （XZ201801NB12）
XZNKY-2018-C-040) （）
