RT Journal Article
T1 Ancient diversity within Diporodrilus (Crassiclitellata, Annelida) clarify the historical biogeography of Corso‑Sardinian earthworms
A1 Fernández Marchán, Daniel
A1 Martínez Navarro, Alejandro
A1 Gérard, Sylvain
A1 Decaëns, Thibaud
A1 Novo Rodríguez, Marta
AB Corsica and Sardinia are amongst the largest islands of the Western Mediterranean. Their complex geological history includedbelonging to the European–Iberian continental margin (close to current-day Catalonia and Provence) and varying degreesof isolation for the last 30 million years, leading to peculiar, highly endemic faunas and floras. This is especially true fortheir earthworm faunas, which include endemic species of several Lumbricoidea genera and the endemic family (or subfamily)Diporodrilidae. Only three species have been described for the morphologically unique Diporodrilus, but there existsevidence for wide morphological variability within them and the existence of several species-level genetic lineages withinCorsica. This work aimed to investigate the genetic diversity and phylogenetic relationships between the genetic lineagesof Diporodrilus from Corsica and Sardinia (based on the sequences of 5 mito-nuclear markers), to perform an integrativesystematics revision combining species delimitation techniques and morphological data, and to obtain a time-calibrated phylogenyof Diporodrilus and other Corso-Sardinian Lumbricoidea. Within 15 populations of the morphospecies Diporodrilusomodeoi and Diporodrilus pilosus across Corsica and Sardinia, 10 species-level genetic lineages were detected. Phylogeneticindependence, high genetic divergence and morphological differences provided the support for the description of five newpseudocryptic species: Diporodrilus rotundus sp. nov., Di. jorgei sp. nov., Di. minor sp. nov., Di. meridionalis sp. nov. andDi. telti sp. nov. Time-calibrated phylogenetic inference estimated the age for genus Diporodrilus at 65.9 Mya; even if otherCorso-Sardinian genera were significantly younger, all of them presented deep divergences predating the break-off of themicroplate from the continent. The almost threefold increase in the known diversity of Diporodrilus stresses the need forcomprehensive earthworm diversity inventories in both Sardinia and Corsica, and for studies on their ecological role andconservation status. The close correspondence between some geological and cladogenetic events suggest that the distributionof Corso-Sardinian earthworms could be used to inform standing geological controversies.
PB Springer
SN 1439-6092
YR 2024
FD 2024-03-15
LK https://hdl.handle.net/20.500.14352/102614
UL https://hdl.handle.net/20.500.14352/102614
LA eng
NO Marchán, D. F., Navarro, A. M., Gérard, S., Decaëns, T., & Novo, M. (2024). Ancient diversity within Diporodrilus (Crassiclitellata, Annelida) clarify the historical biogeography of Corso-Sardinian earthworms. Organisms Diversity & Evolution, 1-17.
NO 2023 Acuerdos transformativos CRUE-CSIC
NO Ministerio de Ciencia, Innovación y Universidades (MCIN)/Agencia Estatal de Investigación
NO Gobierno de España
NO Campus France
DS Docta Complutense
RD 8 abr 2025