Geometric morphometric analysis of pronotum shape in two isolated populations of Dorcadion anatolicum Pic, 1900 (Coleoptera: Cerambycidae) in Turkey

Year 2019, , 263 - 270, 01.09.2019

Aslı Doğan Sarıkaya , Atılay Yağmur Okutaner Özkan Sarıkaya

https://doi.org/10.16970/entoted.525860

Cited By: 3

Abstract

The genus Dorcadion Dalman, 1817 (Coleoptera: Cerambycidae) comprises species living at ground surface and having lost the ability to fly. Hence the populations of the species are easily isolated from each other. These biological features are considered to be important factors for the acceleration of speciation in this genus. The effects of population isolation can be measured through the morphological characters of samples. The morphological characters that enabled the taxonomists to identify this genus are mainly subjective.This situation causes some systematic problems. Dorcadion anatolicum Pic, 1900 (Coleoptera: Cerambycidae) is an endemic species in Turkey and the subspecies status of some populations is debated. The aim of this study was to determine pronotum shape variation via geometric morphometrics from two isolated localities and to contribute to knowledge of the taxonomic and evolutionary status of D. anatolicum. The samples were collected from two different localities of Turkey (Kahramanmaraş and Konya Provinces) in March-April 2018. Results of morphometric analysis revealed that the pronotum shape variations of the samples allowed morphological discriminations of populations.

Keywords

Coleoptera, Dorcadion anatolicum, geometric morphometrics, landmark, pronotum

Supporting Institution

Ahi Evran University, Scientific Research Unit, Kırşehir, Turkey, Grant Project No: FEF.A4.18.

Project Number

Ahi Evran University, Scientific Research Unit, Kırşehir, Turkey, Grant Project No: FEF.A4.18.

Thanks

This study was supported by Ahi Evran University, Scientific Research Unit, Kırşehir, Turkey, Grant Project No: FEF.A4.18.03.

Dorcadion anatolicum Pic, 1900 (Coleoptera: Cerambycidae)’ un Türkiye’deki izole popülasyonlarında pronotum şekil değişiminin geometrik morfometri analizleri

Abstract

Dorcadion Dalman, 1817 (Coleoptera: Cerambycidae) cinsi türleri toprak yüzeyinde yaşayan ve uçma kabiliyetleri olmayan türlerdir. Ancak bu türlerin popülasyonları birbirlerinden kolayca izole olabilirler. Bu tarz biyolojik özellikler türleşme sürecini hızlandıran önemli faktörler olarak düşünülebilir. İzole popülasyon en etkileri örneklerin morfolojik karakterleri üzerinden ölçülebilir. Taksonomistlerin cinsin tanımlamasında kullandığı morfolojik karakterler genel olarak özneldir. Bu durum bazı sistematik problemlere neden olmaktadır. Türkiye’ye endemik olan Dorcadion anatolicum Pic, 1900 (Coleoptera: Cerambycidae) türünün bazı popülasyonlarının alttür statüsü tartışmalıdır. Bu çalışmanın amacı, iki izole lokaliteden alınan örneklerin pronotum şekil farklılıklarını geometrik morfometri analizleri ile belirlemek ve D. anatolicum'un taksonomik ve evrimsel durumuna katkıda bulunmaktır. Çalışmada kullanılan örnekler Türkiye’nin iki farklı popülasyonundan (Kahramanmaraş ve Konya) 2018 yılı mart ve nisan aylarında toplanmıştır. Morfometrik analiz sonuçları örneklerin pronotum şekil değişikliklerinin, popülasyonların morfolojik anlamda ayrımına izin verdiğini ortaya koymuştur.

Keywords

Coleoptera, Dorcadion anatolicum, geometrik morfometri, homolog referans noktası, pronotum

Project Number

Ahi Evran University, Scientific Research Unit, Kırşehir, Turkey, Grant Project No: FEF.A4.18.

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