Matushkina Natalia A
Department of Zoology, Biological Faculty, National Taras Shevchenko University of Kyiv, vul. Volodymirs'ka, 64, Kyiv UA-01033, Ukraine.
Arthropod Struct Dev. 2008 Jul;37(4):321-32. doi: 10.1016/j.asd.2007.11.006. Epub 2008 Jan 11.
The skeleton-muscular organisation of abdominal segments 7-9 in female Anax imperator L. (Anisoptera, Aeshnidae) was examined in the stages of ultimate larva, teneral imago, and mature imago, with special emphasis on the transformation of the muscle arrangement. The absence of certain muscles in the genital segments compared to the 7th pre-genital segment was noted on all studied stages. Reductions of certain muscles in adults compared to those in larvae are reported. Some of ovipositor's muscles appear already in larvae. Attachment sites of larval muscles are retained in freshly emerged females concurrently with integument transformations. This situation allows for precise determination of the borders of newly differentiated genital sclerites and, therefore, of the possible origin of certain ovipositor elements in odonates. All changes in the segmental sets of studied abdominal muscles during metamorphosis are tabulated, and displacements of muscles are documented and illustrated. Schematic figures illustrating homologies between the parts of larval and imaginal abdominal sclerites are provided. The origins of the components of the endophytic ovipositor in Odonata as well as their implications for the evolutionary morphology of the insect ovipositor are discussed.
对雌性大蓝晏蜓（Anax imperator L.，蜻蛉目，蜓科）腹部第7 - 9节的骨骼肌肉组织在终龄幼虫、羽化初期成虫和成熟成虫阶段进行了研究，特别着重于肌肉排列的转变。在所有研究阶段都注意到，与第7个生殖前节相比，生殖节中某些肌肉缺失。报告了成虫中某些肌肉相对于幼虫的减少情况。产卵器的一些肌肉在幼虫阶段就已出现。幼虫肌肉的附着位点在刚羽化的雌性中随着体表转变而保留。这种情况有助于精确确定新分化的生殖骨片的边界，从而确定蜻蜓目某些产卵器元件的可能起源。列出了变态过程中所研究腹部肌肉节段组的所有变化，并记录和说明了肌肉的移位情况。提供了说明幼虫和成虫腹部骨片各部分之间同源性的示意图。讨论了蜻蜓目内生式产卵器各组成部分的起源及其对昆虫产卵器进化形态学的影响。
