Comparative morphology and histology of Hemipeneal structure of Laudakia nupta (De Filippi, 1843) and Paralaudakia caucasia (Eichwald, 1843)

F. Sayyadi, N. Rastegar-Pouyani, M. Azadbakht, K. Chehri
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Abstract

The morphology and structure of the hemipenis play a significant role in the recognition of species, and could be an excellent indicator of the phylogenetic relationships among male taxa. The hemipenes have value in distinguishing taxa. Laudakia nupta and Paralaudakia caucasia are sympatric in Kalekan Neck (Northeastern regions of Kermanshah Province, 34° 42’ N, 47° 17’ E, Elevation: 1880 m). In this study, we investigated and compared hemipeneal structure of Laudakia nupta and Paralaudakia caucasia as character displacement in sympatric populations. Hemipenes of eight adult collected males (four from each species) were removed and examined morphology and histology. The results indicate that there are differences in the structure of their hemipenis between two species. In Laudakia nupta, hemipenes are black organs, approximately smooth tubular with groove and split in tips but in Paralaudakia caucasia, hemipenes are pink organs, bilobed, branched and bifurcated structure. It seems that the difference between the structure of hemipenises in two species can be a factor in the separation of male species in Kalekan Neck (Northeastern regions of Kermanshah Province). The structure of hemipenis is potentially important for distinguishing male species.
nupta (De Filippi, 1843)和caucasia副audakia (Eichwald, 1843)半尖结构的形态学和组织学比较
半阴茎的形态和结构在物种识别中起着重要的作用,可以作为雄性类群间系统发育关系的一个很好的指标。半粒在区分分类群方面具有一定的价值。Kalekan Neck (Kermanshah省东北部地区,34°42 ' N, 47°17 ' E,海拔:1880 m)是同域分布的白毛犀和高加索副白毛犀。本研究对白毛犀和高加索副白毛犀的半penal结构作为同域分布种群的特征位移进行了研究和比较。取8只成年雄性(每种各4只)的半烯,进行形态学和组织学检查。结果表明,两个物种的半阴茎结构存在差异。在白藓属植物中,半粒果是黑色的器官,近似光滑管状,有沟槽,顶端裂开;而在白藓属植物中,半粒果是粉红色的器官,有双裂片、分枝和分叉结构。在Kalekan Neck (Kermanshah省东北部地区),两个物种的半阴茎结构的差异可能是雄性物种分离的一个因素。半阴茎的结构对于区分雄性物种具有潜在的重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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