Molecular and morphological data suggest weak phylogeographic structure in the fairy shrimp Streptocephalus torvicornis (Branchiopoda, Anostraca)

  title={Molecular and morphological data suggest weak phylogeographic structure in the fairy shrimp Streptocephalus torvicornis (Branchiopoda, Anostraca)},
  author={Ilias Kappas and Graziella Mura and Dimitra Synefiaridou and Federico Marrone and Giuseppe Alfonso and Miguel Alonso and Theodore J Abatzopoulos},
Inland aquatic organisms almost ubiquitously display a pattern of marked provincialism characterized by substantial population differentiation and genealogical discontinuities. This is the result of strong priority effects and local adaptation following dispersal and colonization of new habitats. We present a case that defies this biogeographic paradigm. We have investigated the phylogeography of the fairy shrimp Streptocephalus torvicornis across its circum-Mediterranean and Eurasian… 

High genetic variation and phylogeographic relations among Palearctic fairy shrimp populations reflect persistence in multiple southern refugia during Pleistocene ice ages and postglacial colonisation

The results show that B. schaefferi comprises four highly diverged evolutionary clades, which belong to a complex of four morphologically cryptic species, which should be considered as separate evolutionary significant units for conservation.

Limited long-distance dispersal success in a Western European fairy shrimp evidenced by nuclear and mitochondrial lineage structuring

Abstract Anostraca are known by their ability for long-distance dispersal, but the existence in several species of deep, geographically structured mtDNA lineages suggests their populations are

Pleistocene allopatric differentiation followed by recent range expansion explains the distribution and molecular diversity of two congeneric crustacean species in the Palaearctic.

This study illustrates how isolation in combination with stochastic effects linked to glacial periods are important drivers of the allopatric differentiation of Palaearctic taxa.

Dancing on the top: phylogeography and genetic diversity of high-altitude freshwater fairy shrimps (Branchiopoda, Anostraca) with a focus on the Tibetan Plateau

Based on morphology, three species of fairy shrimp are identified, among 14 fairy-shrimp populations from the Tibetan Plateau, China, and sequences from B. affinis exhibited a star-like pattern in haplotype networks, suggesting a recent rapid expansion.

Morphological analyses allow to separate Branchipus species (Branchiopoda, Anostraca) from different geographic regions

This study used multivariate analysis to assess the degree of morphological variability between Branchipus populations currently ascribed to different species, and indicated that individuals from the southeastern, mountainous part of the country had the highest level of differentiation.

DNA taxonomy of the potamid freshwater crabs from Northern Africa (Decapoda, Potamidae)

The Maghreb proved to host an unexpectedly high genetic diversity of, and to constitute a biodiversity hot‐spot for, the Potamon subgenus Euthelphusa, and the status of Maghrebian Potamon populations should be re‐assessed for both the species present in the area, which are to be considered as independent management units.

Chirocephalus sarpedonis sp. nov. (Branchiopoda, Anostraca, Chirocephalidae) from Turkey questions the monophyly of the traditional Chirocephalus species-groups

Morphological and molecular analyses fail to confirm the monophyly of the bairdi-group and exclude C. sarpedonis sp.

New challenges in anostracan research: old issues, new perspectives and hot topics

The fourteen papers published in the Hydrobiologia Special Volume “New Challenges in anostracan research: a tribute to Graziella Mura” are intended to represent a step ahead to solve phylogenetic and ecological issues relative to this charming group of crustaceans.

Different invasibility of permanent and temporary waterbodies in a semiarid Mediterranean Island

ABSTRACT Nonindigenous species (NIS) represent a threat to aquatic biodiversity worldwide. However, freshwater ecosystems in drylands are potentially more prone to biological invasions than those

Preface: New challenges in anostracan research, a tribute to Graziella Mura

This special volume of Hydrobiologia is dedicated to the memory of Graziella Mura, who unexpectedly passed away on 23 March 2016 when she was still carrying out her highly influential and



Large-scale mitochondrial phylogeography in the halophilic fairy shrimp Phallocryptus spinosa (Milne-Edwards, 1840) (Branchiopoda: Anostraca)

Abstract.In this study we analyzed patterns of sequence divergence in about 1kb of mitochondrial DNA coding for two genes (16S rRNA and Cytochrome Oxidase I, COI) in 15 populations and 61 individuals

Mitochondrial DNA Regionalism and Historical Demography in the Extant Populations of Chirocephalus kerkyrensis (Branchiopoda: Anostraca)

Coalescence methods revealed a scenario of past isolation with low levels of gene flow in line with what is already known for other co-distributed fairy shrimps and suggest drift as the prevailing force in promoting local divergence.

A conflict of morphological and genetic patterns in the Australian anostracan Branchinella longirostris

Some evidence is found on the genetic level to support the hypothesis that B. longirostris could be a species complex and whether the frontal appendage on the second antennae of males is a suitable character to differentiate new species, but the lack of correlation between the genetic pattern and the reproductively important frontal appendages lends a support to a view that the species is a single species with an exceptionally high intraspecific diversity.

Weak phylogeographic structure in the endemic western North American fairy shrimp Branchinecta lynchi (Eng, Belk and Erickson 1990)

  • A. Aguilar
  • Biology, Environmental Science
    Aquatic Sciences
  • 2010
Results indicate that geographically limiting stochastic colonization followed by local diversification may be important in governing current genetic structure for this species and future conservation/restoration efforts should recognize the geographic limitations to population structure and focus on local endemic genetic variation.

Molecular evidence suggests an ancient radiation for the fairy shrimp genus Streptocephalus (Branchiopoda: Anostraca)

Results indicate that Streptocephalus probably evolved in Gondwana and that the current distribution patterns are a consequence of a combination of vicariance and limited dispersal, implications for the evolution of continental freshwater crustaceans are discussed.

Fairy shrimps in distress: a molecular taxonomic review of the diverse fairy shrimp genus Branchinella (Anostraca: Thamnocephalidae) in Australia in the light of ongoing environmental change

A large scale phylogeny of the Australian Branchinella is reconstructed by analyzing the 16S mitochondrial gene of 31 presumed species, complemented with analysis of morphological structures holding taxonomic information, which suggests substantial physiological plasticity or important adaptive variation present in some species, potentially enabling them to better cope with environmental change.

Molecular phylogenetics and asexuality in the brine shrimp Artemia.

Re-evaluation of three related species of the genus Branchipus Schaeffer, 1766 (Branchiopoda: Anostraca) by morphological and genetic analyses

The molecular results, together with morphological observations, did not provide support for the existing subdivision in the three nominal species B. pasai, B. schaefferi , and B. visnyai and places the validity of previously proposed taxonomic groups in discussion.

Deep genetic divergences among morphologically similar and parapatric Skistodiaptomus (Copepoda: Calanoida: Diaptomidae) challenge the hypothesis of Pleistocene speciation

Mitochondrial (mt)DNA sequence divergences do not support hypotheses for Pleistocene speciation and instead suggest much more ancient speciation events in the genus Skistodiaptomus, and clear evidence of CO I pseudogenes is found in S. pygmaeus, but their presence did not lead to significant overestimates of sequence divergs for this gene.