The genetic diversity of some representative taxa of the door snail tribe Delimini R. Brandt, 1956 (Clausiliidae) from the Mid-Mediterranean areas was investigated. The analysis was carried out on 60 cytochrome oxidase subunit I (COI) partial sequences from the genera Mauritanica O. Boettger, 1879; Sicania Tomlin, 1929; Siciliaria Vest, 1867; and Stigmatica O. Boettger, 1877 combined with 51 homologous sequences available for the same tribe retrieved from GenBank. Moreover, the shell and genital morphology of a few selected taxa were examined to redefine their systematic position. Key topics can be summarized as follows: (i) a revision of the phylogenetic relationships among Mauritanica, Sicania, Siciliaria, and Stigmatica is discussed; (ii) the new monospecific genus Benoitiella gen. n. is proposed for Mauritanica scarificata from the island of Marettimo; (iii) Mauritanica cossoni is re-allocated to the genus Siciliaria; (iv) within the genus Siciliaria, S. septemplicata and S. leucophryna revealed a more significant heterogeneity than expected so far; (v) Siciliaria leucophryna nordsiecki n. ssp. is described; (vi) a new systematics of the Siciliaria alcamoensis group is proposed; (vii) Siciliaria a. vigil n. ssp. and S. a. aegestana n. ssp. are described; (viii) the timing of the Delimini radiation in the Mediterranean is explored; and (ix) some biogeographic hypotheses on the origins and evolution of the taxa under study are suggested.
Genetic diversity, phylogenetic relationships and systematic revision of some Delimini (Gastropoda, Clausiliidae) from Mid-Mediterranean areas: new insights and biogeographic considerations
MARIASTELLA COLOMBA
;ARMANDO GREGORINI;
In corso di stampa
Abstract
The genetic diversity of some representative taxa of the door snail tribe Delimini R. Brandt, 1956 (Clausiliidae) from the Mid-Mediterranean areas was investigated. The analysis was carried out on 60 cytochrome oxidase subunit I (COI) partial sequences from the genera Mauritanica O. Boettger, 1879; Sicania Tomlin, 1929; Siciliaria Vest, 1867; and Stigmatica O. Boettger, 1877 combined with 51 homologous sequences available for the same tribe retrieved from GenBank. Moreover, the shell and genital morphology of a few selected taxa were examined to redefine their systematic position. Key topics can be summarized as follows: (i) a revision of the phylogenetic relationships among Mauritanica, Sicania, Siciliaria, and Stigmatica is discussed; (ii) the new monospecific genus Benoitiella gen. n. is proposed for Mauritanica scarificata from the island of Marettimo; (iii) Mauritanica cossoni is re-allocated to the genus Siciliaria; (iv) within the genus Siciliaria, S. septemplicata and S. leucophryna revealed a more significant heterogeneity than expected so far; (v) Siciliaria leucophryna nordsiecki n. ssp. is described; (vi) a new systematics of the Siciliaria alcamoensis group is proposed; (vii) Siciliaria a. vigil n. ssp. and S. a. aegestana n. ssp. are described; (viii) the timing of the Delimini radiation in the Mediterranean is explored; and (ix) some biogeographic hypotheses on the origins and evolution of the taxa under study are suggested.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
