On the molecular and morphological evolution of continental and insular Cryptorchestia species, with an additional description of C. garbinii (Talitridae)
Küçük Resim Yok
Tarih
2018
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Pensoft Publ
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Semi-terrestrial talitrid amphipods of the genus Cryptorchestia (sensu Lowry and Fanini 2013) associated with freshwater-soaked leaf litter were known to occur in inland lakes of Turkey and at the shores of the Black Sea. Before 2013 they had been reported as Orchestia cavimana and later as Cryptorchestia cavimana. In our phylogenetic tree, inferred from a mitochondria] and nuclear gene dataset (cytochrome oxidase I (COI), and histone H3 (H3), respectively), we show that these Turkish populations belong to Cryptochestiagarbinii, a common and widespread continental species, which is closely related to C. cavimana (endemic to Cyprus) and C. ruffoi (endemic to Rhodes). For the Turkish and European populations of C. garbinii, we found low levels of both genetic differentiation and morphological variation, and an age-related size variability (increasing at each moult) of the small lobe in the male gnathopod I merus, the main taxonomically diagnostic character for Cryptorchestia. A mainland (C. garbinii) versus insular isolation and in situ speciation (C. cavimana, and C. ruffor) in the two east Mediterranean islands of Cyprus and Rhodes is discussed in relation to terrestrial Cryptorchestia species endemic to North East Atlantic volcanic islands (Azores, Canary Islands, and Madeira). The incorporation of five Mediterranean and Atlantic Orchestia species in the Bayesian analysis of the two genes (COI, and H3) indicated that both genera Orchestia and Cryptorchestia are not monophyletic.
Açıklama
Anahtar Kelimeler
Bayesian analysis, biogeography, northwest Turkey, phylogeny, Talitridae, taxonomy
Kaynak
Zookeys
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
Sayı
783
