New Contribution to the Knowledge on the Chromosome Numbers of Turkish Cerambycidae (Coleoptera)

Abstract

Information on the karyotypes of Turkish species of Cerambycidae is scanty. Our study contributes to the knowledge of the karyological data (chromosomal number and mechanism of sex determination) of five Turkish longicorn beetles; karyotypes of four taxa, one endemic, are described for the first time and for the remaining one, Purpuricenus budensis (Götz, 1783), the previously published chromosome count is confirmed. The chromosome number of Purpuricenus desfontainii inhumeralis Pic, 1891 and Purpuricenus budensis (Götz, 1783) (Cerambycinae, Trachyderini) was found to be 2n = 28 (13 + Xyp); Clytus rhamni Germar, 1817 and Plagionotus floralis (Pallas, 1773) (Cerambycinae, Clytini) 2n = 20 (9 + Xyp); and the endemic Dorcadion triste phrygicum Peks, 1993 (Lamiinae, Dorcadionini) 2n = 24 (11 + Xyp). In view of the paucity of data available until now, our study is important for both to improve the poor karyological knowledge of Turkish Cerambycidae and to provide an incentive for other researchers.

Dissecting natural hybridisation in longhorned beetles through an integrative approach: Further proof of reticulate evolution in Dorcadionini (Cerambycidae, Lamiinae)

“…The two heterosomes are associated in a parachute configuration in the metaphase I of male meiosis as illustrated in Okutaner et al. (2011), Dascălu and Fusu (2012), Koçak and Yağmur (2021). A slight variation exists mostly in the size and centromeric position of the remaining autosomes, nearly all acrocentric.…”

“…The 24 chromosomes of D. lugubre are comparable in size and morphology with most of the other previously investigated taxa, with four large metacentric chromosomes, a large X and a punctiform Y chromosome. The two heterosomes are associated in a parachute configuration in the metaphase I of male meiosis as illustrated in Okutaner et al (2011), Dascălu and Fusu (2012), Koçak and Yağmur (2021). A slight variation exists mostly in the size and centromeric position of the remaining autosomes, nearly all acrocentric.…”