Influence of sex-specific stimuli on ovarian maturation in primary and secondary reproductives of the dampwood termite Zootermopsis angusticollis
Influence of sex-specific stimuli on ovarian maturation in primary and secondary reproductives of the dampwood termite Zootermopsis angusticollis
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DOI：
10.1046/j.0307-6962.2001.00243.x
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发表时间：
2001-09-01
影响因子：
1.5
通讯作者：
Traniello, JFA
中科院分区：
文献类型：
--
作者：
Brent, CS;Traniello, JFA
据推测，雌性初级和次级生殖的狭颈动物白蚁哈根需要性特异性刺激的生殖男性触发卵巢成熟。为了验证这一假设，建立了实验室殖民地，其中包含雌性初级或次级生殖筑巢：单独;与雄性;与雌性;和三个第三至第四龄幼虫。殖民地开始后，我们测量了体重，卵巢管数量和繁殖力超过60天的变化。结果表明，雌性初级生殖成熟的促进与男性的接触，但抑制的存在下，另一个女性。无论性别如何，次级雌性不会受到另一个生殖体的存在的影响，但初级雌性生殖能力的发展似乎取决于雄性特异性刺激。依赖于男性-女性的相互作用，以诱导女性生殖发育，可以确保新dealate女性的资源不会浪费在生产幼虫，将有一个穷人的生存机会，在没有男性。相比之下，在已建立的殖民地内成熟的次级雌性很可能有配偶并立即协助非生殖任务，因此不会延迟卵巢成熟和生殖，直到它们感知到雄性特异性刺激。这些结果表明，男性特定的刺激只影响初级女性的生殖发育，并表明初级和次级女性依赖于配偶援助的程度可能塑造了他们的生理反应的存在下，一个生殖男性。
It was hypothesized that female primary and secondary reproductives of the termite Zootermopsis angusticollis Hagen require sex-specific stimuli from a reproductive male to trigger ovarian maturation. To test this hypothesis, experimental laboratory colonies were established that contained female primary or secondary reproductives nesting: alone; with a male; with a female; and with three third- to fourth-instar larvae. Following colony initiation, we measured changes in body mass, ovariole number and fecundity over 60 days. Results indicate that the reproductive maturation of female primaries was promoted by contact with a male but inhibited by the presence of another female. Secondary females were not affected by the presence of another reproductive, regardless of sex, but the development of reproductive competency of primary females appeared to depend on male-specific stimulation. Reliance on male-female interaction to induce female reproductive development may ensure that the resources of newly dealate females are not wasted on producing larvae that would have a poor chance of surviving in the absence of a male. By contrast, secondary females maturing within established colonies are likely to have a mate and immediate assistance with non-reproductive tasks, and therefore do not delay ovarian maturation and reproduction until they perceive male-specific stimuli. These results demonstrate that male-specific stimuli affect only the reproductive development of primary females, and suggest that the degree to which primary and secondary females depend on mate assistance may have shaped their physiological responses to the presence of a reproductive male.