Morphological and molecular taxonomy of a new Daptonema (Nematoda,Xyalidae) with comments on the systematics of some related taxa |
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| Authors: | PATRICIA FERNANDES NERES VERÔNICA GOMES DA FONSECA‐GENEVOIS RODRIGO AUGUSTO TORRES MARIANA DA FONSECA CAVALCANTI FRANCISCO JOSÉ VICTOR DE CASTRO NEYVAN RENATO RODRIGUES DA SILVA TANIA TASSINARI RIEGER WILFRIDA DECRAEMER |
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| Affiliation: | 1. Departamento de Zoologia, Universidade Federal de Pernambuco, Av. Professor Moraes Rêgo, s/n, Cidade Universitária, Recife, PE, Brazil, 50670–420;2. Universidade Federal de Campina Grande, Campus Cuité. Rua Olha d'água da bica s/n. 58175‐000. Cuité, PB, Brazil;3. Instituto Federal do Rio Grande do Norte, Unidade Descentralizada Zona Norte, Rua Brusque s/n, Potengi, Natal, RN, Brazil;4. Departamento de Genética, Universidade Federal de Pernambuco, Av. Prof. Professor Moraes Rêgo, s/n, Cidade Universitária, Recife, PE, Brazil, 50670–420;5. Royal Belgian Institute of Natural Sciences, Vautierstraat 29, 1000 Brussels and Department of Biology, Ghent University, Ledeganckstraat, 35;6. B‐9000, Gent, Belgium |
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| Abstract: | A new species of Daptonema is described based upon morphological characters and 18S rRNA sequence. Daptonema matrona sp. nov. was collected in Pina Basin (north‐eastern Brazil). It differs from all other species of the genus by the presence of reduced cephalic setae and straight spicules. These features require an adaptation of the generic diagnosis. Moreover, the females are characterized by intra‐uterine development of the offspring, considered herein as their major autapomorphic feature. Molecular systematic analyses supported Daptonema matrona sp. nov. as a distinct genetic and evolutionary lineage. The data also indicate hypotheses of taxonomic synonymies amongst some related taxa from Xyalidae as well as the paraphyly of Daptonema. © 2010 The Linnean Society of London, Zoological Journal of the Linnean Society, 2010, 158 , 1–15. |
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| Keywords: | 18S rRNA Daptonema taxonomy integrative taxonomy Xyalidae phylogeny |
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