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Caste differentiation of spermatheca and organs related to sperm use and oviposition in the honeybee, Apis mellifera
Apidologie ( IF 2.4 ) Pub Date : 2020-11-06 , DOI: 10.1007/s13592-020-00815-9
Ayako Gotoh , Ken Sasaki

Striking queen–worker dimorphism associated with each task is a key feature of highly eusocial insects, including Apis mellifera. The present study histologically examined the developmental process of the internal reproductive organs including spermatheca, valve-fold in the vagina, semi-circular muscle surrounding the common oviduct, and abdominal ganglia in honeybee queens and workers. During the pupal stage, queens showed an increased spermathecal reservoir, development of the tracheal network surrounding the spermathecal reservoir, and elongation of the spermathecal gland. Compared with queens, these developmental processes were never observed during the pupal stage in workers. Moreover, development of the valve-fold and semi-circular muscle was aborted, and they became rudimentary at the middle pupal stage in workers. Morphological caste differences in the abdominal ganglia were observed from the prepupal stages, showing that the most posterior ganglion was fused with the anterior ganglia in queens but not in workers.

中文翻译:

蜜蜂的受精囊和与精子使用和产卵有关的器官的种姓分化,Apis mellifera

与每项任务相关的引人注目的蜂王-工蜂二态性是高度真社会性昆虫(包括蜜蜂)的一个关键特征。本研究从组织学上检查了蜜蜂女王和工蜂的内部生殖器官的发育过程,包括受精囊、阴道瓣膜、共同输卵管周围的半圆形肌肉和腹部神经节。在蛹阶段,蜂王的受精囊水库增加,受精囊水库周围的气管网络发育,受精囊腺伸长。与蜂后相比,这些发育过程在工蜂的蛹期从未被观察到。此外,瓣膜皱襞和半圆肌的发育中止,它们在工蜂的蛹中期发育不全。
更新日期:2020-11-06
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