Further molecular assessment of the distribution of Spanish sand racers (Lacertidae; Psammodromus)

Author(s):  
David James Harris ◽  
Joaquim Filipe Faria ◽  
Miguel A Carretero

Three related and morphologically similar small Psammodromus species (P. hispanicus complex) occur in the Iberian Peninsula and Mediterranean France, Psammodromus hispanicus, Psammo-dromus occidentalis, and Psammodromus edwarsianus. Despite recent works, overall ranges of the species remain partially uncertain, in particular for Westernmost part of Iberia and South-western France. Here we include data from 15 additional specimens that were sequenced for part of the mitochon-drial gene Cytochrome b to allow comparison with published data. We provide genetic confirma-tion that P. edwarsianus is the species of the complex occurring in France, and that P. occidentalis occurs on coastal and inland Portugal. Within P. occidentalis notable diversity occurs for this marker, which warrants further investigation. Some areas, particularly southern Portugal, still need assessment to clarify the distribution of these mostly cryptic species across the region. 

2009 ◽  
Vol 42 (1) ◽  
pp. 29-33 ◽  
Author(s):  
Pieter P.G. van den BOOM

AbstractA new lichen species, Waynea giraltiae van den Boom, is described from southern Portugal and Spain. It is characterized by a very fine tomentum on the squamulose thallus, fusiform, 3-septate ascospores, and strongly curved filiform conidia. It is the first species of the genus containing argopsin. The new species is compared with related Waynea species. Waynea cretica is recorded as new to the Iberian Peninsula.


2013 ◽  
Vol 82 (1) ◽  
pp. 37-53 ◽  
Author(s):  
Catarina S. Mateus ◽  
M. Judite Alves ◽  
Bernardo R. Quintella ◽  
Pedro R. Almeida

The Iberian Peninsula is a repository for biodiversity, presenting high levels of endemism in both plants and animals. In this peninsular region, brook lampreys confined to small, isolated river basins evolved in allopatry giving rise to evolutionary lineages, as revealed by mitochondrial DNA markers. For a better understanding of the taxonomic status and relationships of Iberian populations of the genus Lampetra, we combined previous data from genetics and morphological analysis (assessed here), and describe three new species of the lamprey genus Lampetra Bonnaterre, 1788 in Portugal. In this region L. planeri actually represent a complex of cryptic species, each having smaller geographic ranges than L. planeri, and consequently, greater vulnerability to extinction. The description of Lampetra alavariensis sp. nov. is based on 36 specimens collected on Ribeira de Mangas, a tributary of river Esmoriz, in Northern Portugal. Lampetra auremensis sp. nov. is described on the basis of 31 specimens collected on Ribeira do Olival, a small tributary of river Nabão (Tagus basin). Finally, Lampetra lusitanica sp. nov. is described based on 38 specimens from Ribeira da Marateca, Sado river basin, the southernmost distribution of the genus Lampetra. The recognition of these new species will contribute to the conservation of these already imperilled taxa and will help prevent the extinction of three important evolutionary lineages.


2014 ◽  
Vol 62 (8) ◽  
pp. 623
Author(s):  
Sergio A. Castro ◽  
Roberto Ovalle

Cryptic species are morphologically similar species that tend to be recognised as a single taxon. The genus Capsella contains two cryptic species, C. bursa-pastoris and C. rubella, which are sympatrically distributed on the Iberian Peninsula, but only one of them (C. bursa-pastoris) has been recognised as an introduced species in South America. In continental Chile, two specimens of C. rubella were collected from two distant sites, but it is unclear whether this indicates only local presence or a wider distribution. After extensive sampling throughout continental Chile, we analysed the diversity of collected Capsella specimens using molecular markers. Our aim was to establish the presence of C. bursa-pastoris and/or C. rubella in continental Chile. To this end, we used an amplification refractory mutation system (ARMS) to detect the trnD–trnY fragment of cpDNA, which allowed the differential amplification of polymorphic sites for both species. A subsample of these amplification products (n = 8 fragments) was sequenced and compared with previously documented sequences for C. bursa-pastoris and C. rubella. Of 188 plants, 96.8% were identified as C. bursa-pastoris and 3.2% as C. rubella. C. bursa-pastoris was collected at all localities (28°34ʹS–53°09ʹS), whereas C. rubella was collected only in central-south Chile (34°59ʹS–41°28ʹS). This confirms that both C. bursa-pastoris and C. rubella are present in continental Chile, although they apparently exhibit different abundances and ranges. Our results suggest efforts to elucidate distribution of both Capsella species in South America.


2011 ◽  
Vol 21 (1) ◽  
pp. 65-78 ◽  
Author(s):  
José C. Báez ◽  
Alba Estrada ◽  
Davinia Torreblanca ◽  
Raimundo Real

Zootaxa ◽  
2019 ◽  
Vol 4674 (3) ◽  
pp. 386-392
Author(s):  
ROLAND GERSTMEIER ◽  
JÉRÔME MORINIÈRE ◽  
LARS HENDRICH

The aim of this study is to assess the species status of the Middle-European Thanasimus Latreille, 1806 species using mitochondrial CO1 sequence data. Molecular biological results clearly support the synonymy of T. pectoralis (Fuss, 1863) and T. rufipes (Brahm, 1797) with T. femoralis (Zetterstedt, 1828) as already proposed by Kolibáč (1992). Results of the present study indicate high genetic variation within T. formicarius (Linné, 1758) and emphasize the study of population dynamics of T. formicarius within Europe. Furthermore, preliminary screening of all available T. formicarius sequences on BOLD and Genbank (shorter than 500bp) indicates the presence of a “Continental” and a more “Atlantic” clade in T. formicarius. To support our hypothesis of a probably cryptic species among T. formicarius, more studies, with more specimens from different populations, especially from southern England, northern France and the northern part of the Iberian Peninsula, will be necessary.  


2019 ◽  
pp. 1-12
Author(s):  
Seyyed Saeed Hosseinian Yousefkhani

In this study, we present an integrative systematic revision of the spider gecko, Agamura senso lato, in Iran. We sampled 56 geckos of this complex from its distributional range in Iran and western Pakistan and sequenced these for two mitochondrial markers, cytochrome b and 12S ribosomal RNA, and one nuclear marker, melano-cortin 1 receptor. We combined our molecular data with species distribution modelling and morphological examinations to clarify Agamura persica systematics and biogeography. Due to a lack of published data, we used only our data to investigate the spatial and temporal origin of spider geckos within a complete geographic and phylogenetic context. The phylogenetic analyses confirm the monophyly of Agamura. Among spider geckos, Rhinogekko diverged around the early-mid Miocene (17 Mya) from the Lut Block, and then Cyrtopodion diverged from the Agamura clade about 15 Mya in the mid-Miocene as a result of the uplifting of the Zagros Mountains. Subsequent radiation across the Iranian Plateau took place during the mid-Pliocene. Agamura kermanensis exhibits deep divergence from two other species of Agamura (A. persica and A. cruralis), whereas no geographical substructure was observed on the Iranian Plateau for A. persica and A. cruralis. Our findings reveal that diversification is consistent with a biogeographical model explained by different dispersal waves and vicariant events on the Iranian Plateau during the last 18 Mya. The divergence times between clades are compatible with orogenic events in southern Iran that resulted from the collision with Arabia. According to the genetic differentiation of both mtDNA genes (12S and cytochrome b), the systematic status of A. cruralis is confirmed, the new clade was distinguished from the genus Agamura, monophyly of Rhinogekko was confirmed and the allocation of Cyrtopodion gastrophole to the Cyrtopodion clade was confirmed.


1999 ◽  
Vol 56 (12) ◽  
pp. 2340-2349 ◽  
Author(s):  
Margaret F Docker ◽  
John H Youson ◽  
Richard J Beamish ◽  
Robert H Devlin

Mitochrondrial DNA analysis resolved many previously unanswered questions concerning the phylogeny of the lamprey genus Lampetra (comprising the subgenera Entosphenus, Lethenteron, and Lampetra). A total of 735 base pairs were sequenced from the cytochrome b and NADH dehydrogenase subunit 3 (ND3) genes in 11 lamprey species. With the exception of L. (E.) hubbsi from California, species of the Entosphenus subgenus formed a tight-knit clade that was very distinct from the other two subgenera. Lampetra hubbsi clustered with species of the Lampetra subgenus from the west coast of North America (L. ayresii and L. richardsoni) whereas species of the Lampetra subgenus from Atlantic drainages, namely the North American L . aepyptera and European L. fluviatilis, formed a third cluster. A fourth cluster included two species from the Lethenteron subgenus (L. japonica and L. appendix). Inclusion of published data from a third Lethenteron species, L. zanandreai, showed it to group with the L. (L.) fluviatilis lineage rather than with the other two Lethenteron species. Within each subgenus, members of paired and satellite species were closely related to one another (e.g., L. japonica and L. appendix) or were genetically indistinguishable (e.g., L. ayresii and L. richardsoni). Using rates of molecular evolution estimated in other fish taxa, these genetically indistinguishable species diverged less than 70 000 years ago.


Sign in / Sign up

Export Citation Format

Share Document