Soldiers are differentiated from male larval stages in incipient colonies of Nasutitermes takasagoensis (Isoptera: Termitidae).
Soldiers are differentiated from male larval stages in incipient colonies of Nasutitermes takasagoensis (Isoptera: Termitidae).
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士兵是从高砂白蚁（等翅目：白蚁科）的早期群体中的雄性幼虫阶段分化出来的。
DOI：
10.1007/s13355-017-0485-0
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发表时间：
2017
影响因子：
1.3
通讯作者：
Minakuchi C & Maekawa K.
中科院分区：
文献类型：
--
作者：
Toga K;Minakuchi C & Maekawa K.
在白蚁（所谓的低等白蚁）的遗传学祖先类群中，至少有一个士兵出现并在每个初期殖民地中纵向维持。然而，在顶端类群（所谓的高等白蚁），发展途径和调节士兵在初期殖民地目前仍然未知。因此，我们研究了士兵和工人的发展初期殖民地的高等白蚁（Nasutitermes takasagoensisShiraki）。发育阶段和种姓成功地区分了头宽在初期殖民地4个月后殖民地的基础。此外，观察到的差异之间的第一和第二龄幼虫触角上的刚毛的数量。在高砂猪笼草中，在其建立4个月后，每个初始群体中都有一个以上的士兵。在初期的殖民地preresollavia分化从早期的年龄（男性二龄幼虫），而在成熟的殖民地，他们从男性三龄（=未成年工人）分化。前者的发育期（7天）明显短于后者（14天）。所有的女性二龄幼虫蜕皮成工人。这里所示的发展过程是有用的，以获得更清楚地了解更高的白蚁士兵/工人分化的机制。
In phylogenetically ancestral taxa of termites (the so-called lower termites), at least one soldier emerges and is maintained longitudinally in each incipient colony. However, in apical taxa (the so-called higher termites), the developmental pathway and regulation of soldiers in incipient colonies currently remain unknown. We therefore examined soldier and worker development in incipient colonies of higher termites (Nasutitermes takasagoensisShiraki). Developmental stages and castes were successfully discriminated by head width in incipient colonies 4 months after colony foundation. Furthermore, differences were observed in the number of bristles on antennae between first- and second-instar larvae. InN.takasagoensis, there was more than one soldier in each incipient colony 4 months after its foundation. Presoldiers in the incipient colonies were differentiated from an earlier instar (male second-instar larvae), whereas, in mature colonies, they were differentiated from male third instars (= minor workers). The developmental period of the former (7 days) was markedly shorter than that of the latter (14 days). All female second-instar larvae molted into workers. The developmental processes shown here are useful for obtaining a clearer understanding of the mechanisms of soldier/worker differentiation in higher termites.