We assess the degree of sequence divergence in the maternally inherited mitochondrial cytochrome c oxidase I (COI) and cytochrome b (CytB) genes between two sister species of field crickets, Gryllus rubens Scudder, 1902 and Gryllus texensis Cade and Otte, 2000. We analyzed 1460 base pairs from 10 individuals of each species; individuals were sampled from areas of both allopatry and sympatry. Ov...

Three different lineages of head lice are known to parasitize humans. Clade A, which is currently worldwide in distribution, was previously demonstrated to be present in the Americas before the time of Columbus. The two other types of head lice are geographically restricted to America and Australia for clade B and to Africa and Asia for clade C. In this study, we tested two operculated nits fro...

In the Xingu river basin, Brazil, occurs two genera of Potamotrygonidae family: Potamotrygon and Paratrygon. this region, taxa have significant economic importance for ornamental fishing industry, being intensively captured, especially species leopoldi, which is endemic to basin. attempt propose a species-specific DNA marker from Xingu, as well ensuring robust reliable molecular identification,...

Esox lucius is an economically important freshwater species. Mitochondrial cytb, 12SrRNA, and 16SrRNA gene sequences were used in order to clarify the genetic variation and population structure in three E. Lucius populations, i.e., one Wild population (W) and two hatchery populations (Hatchery Population I-HPI and Hatchery Population II-HPII). A total of 55 individuals, with 19 from wild and 1...

We examined sequence variations in the mitochondrial DNA (mtDNA) control region, tRNA leucine1 (tRNA leu1 ) and cytochrome b (CYTB ) genes in order to investigate the characteristics of mtDNA polymorphisms and haplogroups in Korean population. Seventy maternally unrelated healthy Korean donors provided blood samples for the present study. The small deletion mutations exist only in the hypervari...

background : female sand flies of subgenus adlerius are considered as probable vectors of visceral leishmaniasis in iran. the objective of this study was to determine the morphological and genotypic variations in the populations of this subgenus in the country. methods : sand flies collected using sticky traps from 17 provinces during 2008–2010. the morphometric measurements were conducted with...