尖唇散白蚁的孤雌生殖行为及初建群体研究

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为了证明尖唇散白蚁Reticulitermes aculabialis Tsai et Hwang是否存在孤雌生殖行为和探讨其初建群体的发育特征,本文对尖唇散白蚁分飞成虫进行雌雌配对(FF)和雌雄配对(FM)人工饲养对比研究。结果显示:FM和FF组的筑巢时间和筑巢活动相似;在建巢初期(配对第5天)FF配对组和FM配对组死亡率分别为11.33%和2.67%,FF配对组死亡率显著高于FM组;产卵前FM组的2只雌性个体和FF组的雌性个体卵巢发育程度一致,都有已经完成卵黄积累的成熟卵母细胞。6个月后,FF配对组有7组产生后代,FM配对组有17组产生后代;FF组子代数目显著低于FM组,分别平均为(7.00±1.58)个和(10.33±1.21)个;FF子代全为2~3龄工蚁,而FM组有由3~4龄工蚁分化的低龄兵蚁。最后,我们对新建群体分化出的第一只兵蚁与成熟巢群中的兵蚁进行了形态学比较。我们的结果表明,尖唇散白蚁具有孤雌生殖行为,并且分飞成虫通过雌雌配对和雌雄配对初建群体在发育模式上有显著差异,雌雌成虫配对采用孤雌生殖方式繁殖有可能是野外尖唇散白蚁建群的另一种方式。 In order to prove whether there is parthenogenesis in Reticulitermes aculabialis Tsai et Hwang and to explore the developmental characteristics of its initial population, this study was conducted on female and male pairs (FF) and male-female pairs (FM) Feeding comparative study. The results showed that the nesting time and nesting activities in FM and FF groups were similar. In the initial stage of nesting (paired on the 5th day), the mortality rates of FF paired group and FM paired group were 11.33% and 2.67% Which was higher than that of FM group. The ovaries of two females in pre-spawning FM group and FF group had the same degree of ovary development, all of which had mature oocytes that had completed yolk accumulation. After 6 months, 7 progeny were produced in FF paired group and 17 progeny in FM paired group. The number of progeny in FF group was significantly lower than that in FM group (7.00 ± 1.58) and (10.33 ± 1.21) respectively ; FF progeny all 2 ~ 3 workers ants, and FM group has 3 to 4 years old worker ants differentiation of young soldiers. Finally, we compared the morphology of the first soldier separated from the newly formed group with the soldier in the mature nest. Our results indicate that the parthenogenetic termites have parthenogenesis behavior, and the adults of the terminal insects have significant differences in the developmental model through the female-female mating and the male-female mating. The female parthenogenesis paired with parthenogenetic breeding may be Another way to build terrariums is in the field.
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