Are Pecten maximus and Pecten jacobaeus different species?

1999 ◽  
Vol 79 (5) ◽  
pp. 949-952 ◽  
Author(s):  
Craig S. Wilding ◽  
Andy R. Beaumont ◽  
John W. Latchford
Keyword(s):  
Mitochondrial Dna ◽  
Genetic Distances ◽  
Western Mediterranean ◽  
Pecten Maximus ◽  
Allozyme Electrophoresis ◽  
Congeneric Species ◽  
Similar Magnitude ◽  
Pcr Rflp ◽  
Morphological Differences ◽  
Dna Pcr

Two members of the scallop genus Pecten (Bivalvia: Pectinidae) occur in European waters. Pecten maximus is largely an Atlantic species whilst Pecten jacobaeus is almost completely confined to Mediterranean waters despite slight overlap of distributions in the western Mediterranean. Genetic distances between these species were estimated using both allozyme electrophoresis and mitochondrial DNA PCR–RFLP and shown to be of a similar magnitude to intraspecific values, considerably lower than expected for congeneric species. These data are discussed in the light of recognised morphological differences, hybrid rearing trials and previous studies examining genetic distance by allozyme methodologies.

scholarly journals Mitochondrial DNA variation in the scallop Pecten maximus (L.) assessed by a PCR-RFLP method

Heredity ◽  
1997 ◽  
Vol 79 (2) ◽  
pp. 178-189 ◽  
Author(s):  
Craig S Wilding ◽  
Andy R Beaumont ◽  
John W Latchford
Keyword(s):  
Mitochondrial Dna ◽  
Pecten Maximus ◽  
Dna Variation ◽  
Pcr Rflp

scholarly journals A mitochondrial DNA PCR–RFLP marker for population studies of the black scabbardfish (Aphanopus carbo)

2004 ◽  
Vol 61 (5) ◽  
pp. 864-867 ◽  
Author(s):  
Ricardo Quinta ◽  
Laurentina Gomes ◽  
Ana Teia dos Santos
Keyword(s):  
Mitochondrial Dna ◽  
Genetic Differentiation ◽  
Population Studies ◽  
Restriction Enzymes ◽  
Extensive Study ◽  
The Other ◽  
Dna Variation ◽  
Madeira Archipelago ◽  
Pcr Rflp ◽  
Dna Pcr

Abstract Black scabbardfish (Aphanopus carbo), a commercially valuable marine fish off Portugal and the Madeira Archipelago, was surveyed for mitochondrial DNA variation of part of the cytochrome b gene. In all, 51 fish from three Northeast Atlantic localities were examined using ten restriction enzymes. Overall nucleon diversity was 0.180. Genetic differentiation (θ=0.25) was significant; the Madeira Archipelago sample was distinguishable from samples from the other two localities. The approach should be useful for a more extensive study of black scabbardfish populations.

Phylogeography of the Turkish brown trout Salmo trutta L.: mitochondrial DNA PCR-RFLP variation

2006 ◽  
Vol 68 (A) ◽  
pp. 36-55 ◽  
Author(s):  
F. Bardakci ◽  
N. Degerli ◽  
O. Ozdemir ◽  
H. H. Basibuyuk
Keyword(s):  
Mitochondrial Dna ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Pcr Rflp ◽  
Brown Trout Salmo Trutta ◽  
Dna Pcr

Biochemical Systematics, Biogeography and Evolutionary Rates in Species of the Mediterranean Genus Tyrrhenoleuctra (Plecoptera, Leuctridae)

2004 ◽  
Vol 35 (3) ◽  
pp. 299-306 ◽  
Author(s):  
◽  
J. M. Tierno de Figueroa ◽  
◽  
◽  
Keyword(s):  
North Africa ◽  
Evolutionary Rate ◽  
Taxonomic Status ◽  
Morphological Characters ◽  
Genetic Distances ◽  
Western Mediterranean ◽  
Similar Distribution ◽  
Undescribed Species ◽  
Vicariance Event ◽  
Definition Of

AbstractThe western Mediterranean stonefly genus Tyrrhenoleuctra traditionally includes 3 species: T. minuta (Spain, North Africa, Balearic Islands), T. tangerina (Spain, North Africa), T. zavattarii (Corsica and Sardinia). Since the traditional morphological characters display great and overlapping variation, allozyme electrophoresis was used to clarify taxonomic and phylogenetic relationships within the genus and to discuss biogeographical implications. The results clearly discriminate at least four entities: the Corso-Sardinian unit, for which the name T. zavattarii can be used; the Balearic population, representing an undescribed species; at least two Iberian peninsular species. However, more data on topotypic populations are needed to define the taxonomic status of the Iberian species (including definition of the currently used names T. minuta and T. tangerina). The presence of Tyrrhenoleuctra in Sardinia and Corsica is likely due to an old vicariance event following separation of the Sardinia-Corsica microplate from the Iberian Peninsula. Calibration of the molecular clock (genetic distances vs. Corso-Sardinian plate split from Iberia) resulted in a very low evolutionary rate (0.008 D/my), lower than those found in taxonomically distant groups (including stoneflies) with similar distribution.

Identification of Hake Species (MerlucciusGenus) Using Sequencing and PCR−RFLP Analysis of Mitochondrial DNA Control Region Sequences

2001 ◽  
Vol 49 (11) ◽  
pp. 5108-5114 ◽  
Author(s):  
Javier Quinteiro ◽  
Rodrigo Vidal ◽  
Mónica Izquierdo ◽  
Carmen G. Sotelo ◽  
María José Chapela ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Control Region ◽  
Rflp Analysis ◽  
Mitochondrial Dna Control Region ◽  
Control Region Sequences ◽  
Pcr Rflp

Genetic relationship of some Crataegus spp. (Hawthorn) revealed by chloroplast DNA PCR-RFLP

2008 ◽  
Vol 136 ◽  
pp. S103 ◽  
Author(s):  
Feifei Wu ◽  
Zhihong Zhang ◽  
Hongyan Dai ◽  
Ye Zhang ◽  
Linlin Chang
Keyword(s):  
Chloroplast Dna ◽  
Genetic Relationship ◽  
Pcr Rflp ◽  
Relationship Of ◽  
Dna Pcr

Species delimitation in the leaf beetle genus Macroplea (Coleoptera, Chrysomelidae) based on mitochondrial DNA, and phylogeographic considerations

2006 ◽  
Vol 37 (4) ◽  
pp. 467-479 ◽  
Author(s):  
Gregor Kölsch ◽  
Bo Vest Pedersen ◽  
Olof Biström
Keyword(s):  
Phylogenetic Analysis ◽  
Mitochondrial Dna ◽  
Species Delimitation ◽  
Mitochondrial Gene ◽  
Leaf Beetle ◽  
Genetic Distances ◽  
Amino Acid Substitutions ◽  
Species Status ◽  
Leaf Beetles ◽  
Gene Coding

AbstractThe genus Macroplea Samouelle, 1819 is a group of highly specialized aquatic leaf beetles occurring in the Palaearctic. Since the members of this genus are morphologically very similar, we addressed the question of species identification and delimitation by analysing the second half of the mitochondrial gene coding for the cytochrome oxidase I (COI) subunit. Species limits are inferred from the multimodal frequency distribution of genetic distances between specimens: low genetic distances within a species are clearly set apart from distances between species. The species status of the hitherto controversial species M. japana (Jacoby, 1885) is confirmed. The pattern of nucleotide and amino acid substitutions is discussed in the light of functional domains of the COI molecule. Although the data are preliminary, the results provide new data on the distribution of the species. Together with the phylogenetic analysis they allow for a discussion of the phylogeography of the genus.

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