Molecular phylogeny, morphology, and distribution of Polygordius (Polychaeta: Polygordiidae) in the Atlantic and Mediterranean.
Molecular phylogeny, morphology, and distribution of Polygordius (Polychaeta: Polygordiidae) in the Atlantic and Mediterranean.
复制标题
大西洋和地中海蓼属(Polychaeta:Polygordiidae)的分子系统发育、形态和分布
DOI:
10.1016/j.ympev.2018.06.039
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发表时间:
2018
影响因子:
4.1
通讯作者:
Struck
中科院分区:
文献类型:
--
作者:
Ramey-Balci;Struck
Low morphological diversity among interstitial taxa makes it difficult to delimit species and their geographic boundaries based solely on morphology and molecular data often reveal cryptic species.Polygordius(Annelida, Polygordiidae) have low morphological diversity, but are unusual among interstitial species in their comparatively large size due to their elongated form, high fecundity, and potential for long-distance dispersal via a planktotrophic larval stage.Polygordiusspecies collected from 14 localities in the Northwest Atlantic, Mediterranean Sea, and Southwest Atlantic including several of the respective type localities were analysed. This study presents the first phylogeny of the genusPolygordiusand combines molecular data, sequences of COI, 16S and ITS1/2 genes, and morphological data for a systematic re-evaluation focusing on Atlantic species, with an emphasis on populations from European waters. Phylogenetic analyses recovered six valid species (P. appendiculatus, P. lacteus, P. neapolitanus, P. triestinus, P. jouinae, andP. eschaturus) and their distinctness is confirmed by haplotype network analyses. Thus, molecular data supported the validity of the previously recognized morpho-species and no new species were present.P. erythrophthalmusandP. villotiare invalid species being synonymous withP. lacteus. Subtle differences in head and pygidial morphology and larval type (endolarva vs. exolarva), were useful characters for discrimination. Yet seemingly significant variation in characters among individuals in some species was not diagnostic (e.g., number of pygidial cirri). Highly similar species based on adult morphology were shown to be sister taxa occurring in allopatry. Present day distribution patterns of species are summarized in light of this study.
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影响因子:
2.4
作者:
M. Todaro;J. Fleeger;Y. P. Hu;A. Hrincevich;D. Foltz
通讯作者:
D. Foltz
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
Westheide;Hass‐Cordes
通讯作者:
Hass‐Cordes
DOI:
10.1086/bblv216n3p373
发表时间:
2009-06
期刊:
The Biological Bulletin
影响因子:
--
作者:
A. Shanks
通讯作者:
A. Shanks
影响因子:
1.6
作者:
Lehmacher;Ramey-Balci;Purschke
通讯作者:
Purschke
影响因子:
2.5
作者:
H. Schmidt;W. Westheide
通讯作者:
W. Westheide