Diakow C, Scharff C, Aronow L
Biology Department, Adelphi University, Garden City, New York 11530.
Horm Behav. 1988 Mar;22(1):131-8. doi: 10.1016/0018-506x(88)90036-0.
The experiments reported in this paper provide evidence that eggs must pass through the oviducts in order for receptivity to occur after ovulation in the female frog, Rana pipiens. In one experiment, oviductectomized frogs remained unreceptive after ovulation was induced by administration of exogenous pituitary glands, while sham-operates became receptive within 48 hr. Another experiment had four groups of subjects: ovariectomized females, females with oviducts ligated at the ostial end, females with openings in the uteri that prevented eggs from accumulating there, and sham-operated females. Only the last two groups, groups in which eggs could pass through the oviducts, became receptive. In these experiments, receptivity was indicated by absence of the release call during manual clasping of the trunk. Earlier experiments have shown that eggs have to pass through the oviducts in order to become fertilizable. Thus, the passage of eggs through the oviducts provides a mechanism which links the onset of reproductive behavior to the availability of fertilizable gametes.
本文所报道的实验提供了证据，表明在雌性豹纹蛙排卵后，卵子必须通过输卵管才能产生接受性。在一项实验中，切除输卵管的青蛙在通过注射外源垂体诱导排卵后仍无接受性，而假手术的青蛙在48小时内变得有接受性。另一项实验有四组实验对象：卵巢切除的雌性、输卵管在开口端结扎的雌性、子宫有开口以防止卵子在那里积聚的雌性以及假手术的雌性。只有最后两组，即卵子能够通过输卵管的组，变得有接受性。在这些实验中，接受性通过手动抱紧躯干时不发出释放叫声来表明。早期实验表明，卵子必须通过输卵管才能变得可受精。因此，卵子通过输卵管提供了一种将生殖行为的开始与可受精配子的可用性联系起来的机制。
