FN Archimer Export Format
PT J
TI Phylogeny of sea spiders (Arthropoda: Pycnogonida) inferred from mitochondrial genome and 18S ribosomal RNA gene sequences
BT 
AF Sabroux, Romain
   Corbari, Laure
   Hassanin, Alexandre
AS 1:1;2:1;3:1;
FF 1:;2:;3:;
C1 Institut Systématique Evolution Biodiversité (ISYEB), Sorbonne Université, MNHN, CNRS, EPHE, UA, 57 rue Cuvier, CP 51, 75005 Paris, France
C2 MNHN, FRANCE
IF 4.1
TC 6
UR https://archimer.ifremer.fr/doc/00820/93201/99822.pdf
LA English
DT Article
CR ATIMO VATAE
   BICOSE
   BIOCAL
   BIOMAGLO
   EXBODI
   KANACONO
   KANADEEP 1
   KARUBENTHOS 2
   KAVIENG
   MADANG 2012
   MD 208 / WALTERS SHOAL
   MUSORSTOM 4
   MUSORSTOM 8
   SALOMONBOA
   TARASOC
BO Antea
   Pourquoi pas ?
   Jean Charcot
   Alis
   Marion Dufresne
   Vauban
DE ;Pantopoda;Molecular systematics;Missing data;Suprafamilial synapormophies;Homoplasy;Radiation
AB The phylogeny of sea spiders has been debated for more than a century. Despite several molecular studies in the last twenty years, interfamilial relationships remain uncertain. In the present study, relationships within Pycnogonida are examined in the light of a new dataset composed of 160 mitochondrial genomes (including 152 new sequences) and 130 18S rRNA gene sequences (including 120 new sequences), from 141 sea spider morphospecies representing 26 genera and 9 families. Node congruence between mitochondrial and nuclear markers was analysed to identify the most reliable relationships. We also reanalysed a multilocus dataset previously published and showed that the high percentages of missing data make phylogenetic conclusions difficult and uncertain. Our results support the monophyly of most families currently accepted, except Callipallenidae and Nymphonidae, the monophyly of the superfamilies Ammotheoidea (Ammotheidae + Pallenopsidae), Nymphonoidea (Nymphonidae + Callipallenidae), Phoxichilidioidea (Phoxichilidiidae + Endeidae) and Colossendeoidea (Colossendeidae + Pycnogonidae + Rhynchothoracidae), and the sister-group relationship between Ammotheoidea and Phoxichilidioidea. We discuss the morphological evolution of sea spiders, identifying homoplastic characters and possible synapomorphies. We also discuss the palaeontological and phylogenetic arguments supporting either a radiation of sea spiders prior to Jurassic or a progressive diversification from Ordovician or Cambrian. 
PY 2023
PD MAY
SO Molecular Phylogenetics And Evolution
SN 1055-7903
PU Elsevier BV
VL 182
UT 000952428300001
DI 10.1016/j.ympev.2023.107726
ID 93201
ER

EF