Simeon B. Borissov, Klaus-Gerhard Heller, Battal Çıplak, Dragan P. Chobanov
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引用次数: 2
摘要
我们的研究重点是Poeclimon的起源、分布模式、进化策略和系统学。Poeclimo是古北界最大的灌木蟋蟀属,已描述了150多个分类群。我们采用基于多点序列数据的系统发育和分化时间估计分析(ND2 + COI + 12 S + 16 S + 其+28 S) ,进行祖先区域重建,并跟踪该属行为(声音交流的进化)和形态生理特征(体型和形状,以及精囊大小)的进化。基于我们的研究结果,我们提出了一个新的Poecilimon系统学的修订,包括对一个新物种P.nivalis sp.n的描述,并假设了Poecili蒙进化的三个阶段。(1) 在该属的早期进化过程中,当东地中海出现开放的干燥栖息地时,多样化率较低,物种形成可能是由替代和栖息地破碎化引起的;这一时期的生理学和形态学保留了它们的祖先状态,但主要谱系的进化可能伴随着行为专门化。(2) 梅西尼亚期的气候冷却和干旱导致了对新栖息地的分散和适应,随后是生理和行为适应;主要分支形成或开始多样化。(3) 从墨西拿纪末期开始,一直持续到上新世和更新世,发生了从安纳托利亚到巴尔干半岛的一些扩散事件,气候振荡之后,栖息地专家出现了异地和准地差异,而生态适应增强了歌曲的多样性,并导致了形态生理变化。
Origin, evolution and systematics of the genus Poecilimon (Orthoptera: Tettigoniidae)—An outburst of diversification in the Aegean area
Our study focuses on the origin, dispersal patterns, evolutionary strategies and systematics of Poecilimon, the largest bush-cricket genus in the Palaearctic with over 150 taxa described. We employ phylogenetic and divergence time estimation analyses based on multilocus sequence data (ND2 + COI + 12 S + 16 S + ITS+28 S), perform ancestral area reconstruction, and track the evolution of behavioural (evolution of sound communication) and morpho-physiological traits (body size and shape, and spermatophore size) in this genus. Based on our results, we propose a revised systematics of Poecilimon, including description of a new species, P. nivalissp. n., and hypothesize three stages in the evolution of Poecilimon. (1) In the early evolution of the genus in Tortonian, when open dry habitats appeared in the Eastern Mediterranean, diversification rates were low and speciation was possibly induced by vicariance and habitat fragmentation; physiology and morphology during this period retained their ancestral states but the evolution of main lineages may have been accompanied by behavioural specializations. (2) Climate cooling and aridification during the Messinian induced dispersals and adaptation to new habitats, followed by physiological and behavioural adaptations; major clades formed or started diversifying. (3) Starting at the end of Messinian and continuing through the Plio- and Pleistocene, a few dispersal events from Anatolia to the Balkans took place and climatic oscillations were followed by allo- and parapatric divergence of habitat specialists, while ecological adaptations enhanced song diversity and led to morpho-physiological changes.
期刊介绍:
Systematic Entomology publishes original papers on insect systematics, phylogenetics and integrative taxonomy, with a preference for general interest papers of broad biological, evolutionary or zoogeographical relevance.