The Carpathian Mountains: a biodiversity hotspot for freshwater
Gammarus (Crustacea: Amphipoda)

a 2014

The Carpathian Mountains: a biodiversity hotspot for freshwater Gammarus (Crustacea: Amphipoda)

COPILAȘ-CIOCIANU, Denis, Lucian PÂRVULESCU, Petr PAŘIL a Adam PETRUSEK

Základní údaje

Originální název

The Carpathian Mountains: a biodiversity hotspot for freshwater Gammarus (Crustacea: Amphipoda)

Autoři

COPILAȘ-CIOCIANU, Denis (642 Rumunsko), Lucian PÂRVULESCU (642 Rumunsko), Petr PAŘIL (203 Česká republika, garant, domácí) a Adam PETRUSEK (203 Česká republika)

Vydání

International Zoological Congress of "Grigore Antipa" Museum, 2014

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10600 1.6 Biological sciences

Stát vydavatele

Rumunsko

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/14:00076849

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

cryptic species; Gammarus balcanicus; Gammarus fossarum; lineage diversity; Miocene

Změněno: 9. 12. 2014 21:00, doc. RNDr. Petr Pařil, Ph.D.

Anotace

V originále

The Holarctic genus Gammarus comprises approximately 200 freshwater species exhibiting patchy distributions,weak vagility and ubiquity.Moreover,some of the apparently widespread species are actually diverse species complexes.The aim of this study was to assess the lineage diversity and estimate divergence times of two widespread species complexes in the Carpathians,G.balcanicus and G.fossarum.We sequenced the COI marker from 49 localities for G.balcanicus(118 individuals)and 46 localities for G.fossarum(94 individuals).Phylogenetic relationships were reconstructed using maximum-likelihood and two different approaches were followed for quantifying lineage diversity.Phylogenetic analysis revealed that both taxa comprise highly diverse lineages that are distinct from those of the type localities of nominal taxa.Depending on criteria used(general mixed Yule coalescent and a 16%patristic distance threshold),estimations of lineage diversity indicated at least 8(up to 45)entities within G.balcanicus and no less than 16(up to 27)within G.fossarum.Sequencing of additional genes confirmed that these lineages are distinct also at nuclear level(and remain so even when coexisting in syntopy).Overall Kimura 2-parameter distances averaged 18.3%within G.balcanicus and 21.3%within G.fossarum.The timing of divergence(estimated within a Bayesian framework)between the two complexes is ca.38 MA,while within-complex divergences span the length of the Miocene(ca.6 to 21 MA).The G.balcanicus complex contains three widespread lineages while the others seem to have more restricted distributions.In contrast,fossarum encompasses micro-endemic lineages that follow a mosaic-like distribution pattern.Given the old divergence times,we presume that the complex geomorphological past of the region might have been responsible for the observed patterns of diversity.Thus,we conclude that the Carpathian Mountains represent an ancient diversification centre and a biodiversity hotspot for Gammarus species.

Citovat

COPILAȘ-CIOCIANU, Denis, Lucian PÂRVULESCU, Petr PAŘIL a Adam PETRUSEK. The Carpathian Mountains: a biodiversity hotspot for freshwater Gammarus (Crustacea: Amphipoda). In International Zoological Congress of "Grigore Antipa" Museum. 2014.

@proceedings{1202769,
   author = {COPILAȘandCIOCIANU, Denis and PÂRVULESCU, Lucian and Pařil, Petr and Petrusek, Adam},
   booktitle = {International Zoological Congress of "Grigore Antipa" Museum},
   keywords = {cryptic species; Gammarus balcanicus; Gammarus fossarum; lineage diversity; Miocene},
   language = {eng},
   title = {The Carpathian Mountains: a biodiversity hotspot for freshwater Gammarus (Crustacea: Amphipoda)},
   year = {2014}
}

TY  - CONF
ID  - 1202769
AU  - COPILAȘ-CIOCIANU, Denis - PÂRVULESCU, Lucian - Pařil, Petr - Petrusek, Adam
PY  - 2014
TI  - The Carpathian Mountains: a biodiversity hotspot for freshwater Gammarus (Crustacea: Amphipoda)
KW  - cryptic species
KW  - Gammarus balcanicus
KW  - Gammarus fossarum
KW  - lineage diversity
KW  - Miocene
N2  - The Holarctic genus Gammarus comprises approximately 200 freshwater species exhibiting patchy distributions,weak vagility and ubiquity.Moreover,some of the apparently widespread species are actually diverse species complexes.The aim of this study was to assess the lineage diversity and estimate divergence times of two widespread species complexes in the Carpathians,G.balcanicus and G.fossarum.We sequenced the COI marker from 49 localities for G.balcanicus(118 individuals)and 46 localities for G.fossarum(94 individuals).Phylogenetic relationships were reconstructed using maximum-likelihood and two different approaches were followed for quantifying lineage diversity.Phylogenetic analysis revealed that both taxa comprise highly diverse lineages that are distinct from those of the type localities of nominal taxa.Depending on criteria used(general mixed Yule coalescent and a 16%patristic distance threshold),estimations of lineage diversity indicated at least 8(up to 45)entities within G.balcanicus and no less than 16(up to 27)within G.fossarum.Sequencing of additional genes confirmed that these lineages are distinct also at nuclear level(and remain so even when coexisting in syntopy).Overall Kimura 2-parameter distances averaged 18.3%within G.balcanicus and 21.3%within G.fossarum.The timing of divergence(estimated within a Bayesian framework)between the two complexes is ca.38 MA,while within-complex divergences span the length of the Miocene(ca.6 to 21 MA).The G.balcanicus complex contains three widespread lineages while the others seem to have more restricted distributions.In contrast,fossarum encompasses micro-endemic lineages that follow a mosaic-like distribution pattern.Given the old divergence times,we presume that the complex geomorphological past of the region might have been responsible for the observed patterns of diversity.Thus,we conclude that the Carpathian Mountains represent an ancient diversification centre and a biodiversity hotspot for Gammarus species.
ER  -

COPILAȘ-CIOCIANU, Denis, Lucian P$\backslash$\^{}ARVULESCU, Petr PAŘIL a Adam PETRUSEK. The Carpathian Mountains: a biodiversity hotspot for freshwater Gammarus (Crustacea: Amphipoda). In \textit{International Zoological Congress of ''Grigore Antipa'' Museum}. 2014.

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