|
|
|
|
|
| Sabroux, Romain; Corbari, Laure; Krapp, Franz; Bonillo, Celine; Le Prieur, Stepahnie; Hassanin, Alexandre. |
| The family Ammotheidae is the most diversified group of the class Pycnogonida, with 297 species described in 20 genera. Its monophyly and intergeneric relationships have been highly debated in previous studies. Here, we investigated the phylogeny of Ammotheidae using specimens from poorly studied areas. We sequenced the mitochondrial gene encoding the first subunit of cytochrome c oxidase (CO1) from 104 specimens. The complete nuclear 18S rRNA gene was sequenced from a selection of 80 taxa to provide further phylogenetic signal. The base composition in CO1 shows a higher heterogeneity in Ammotheidae than in other families, which may explain their apparent polyphyly in the CO1 tree. Although deeper nodes of the tree receive no statistical support,... |
| Tipo: Text |
Palavras-chave: Pantopoda; Taxonomy; DNA phylogeny; Barcode of life; Strand-bias. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00484/59530/62518.pdf |
| |
|
| |
|
| |
|
|
| Krapp, Franz. |
| The paper reports on two small collections from the island of Pantelleria and the vicinity of Catania, Sicily. The former locality (mostly surface samples) yielded 52 specimens of 9 species in 9 samples, the latter 190 specimens of 14 species in 11 samples. One species of Nymphon proved to be new to science; it belongs to an uniunguiculate species group with N. longicoxa Hoek, 1881, and N. prolatum Fage, 1942, as nearest relatives. The question of Tanystylum in the Mediterranean is raised again and it is decided that there are two species, T. conirostrum (Dohrn, 1881) and T. orbiculare Wilson, 1878, respectively. The male of Ammothella longioculata Faraggiana, 1940 is figured for the first time in order to compare it with A. longipes (Dohrn, 1881).... |
| Tipo: Article / Letter to the editor |
|
| Ano: 1973 |
URL: http://www.repository.naturalis.nl/record/504888 |
| |
|
|
|
