Research Article

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The threadsail filefish, Stephanolepis cirrhifer (Monacanthidae), is found mainly in the western Pacific. It is intensively caught in Korea and is a highly appreciated seafood delicacy. Consequently, the natural population of this species has drastically decreased, despite introductions from hatcheries. To provide information necessary for its conservation and management, we ... more

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H.S. An; H.W. Kang; H.S. Han; J.Y. Park; C.G. Hong; J. Park; J.I. Myeong; C.M. An
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Korean starry flounder, Platichthys stellatus (Pleuronectidae), is one of the most economically important fishery resources in Korea. We investigated the effect of current artificial reproduction in a hatchery facility, genetic divergence between the broodstock and their offspring populations of starry flounder in a hatchery strain to be stocked into natural sea areas was ... more

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Gene flow; Genetic variability; Mating strategies; Nellore; Population structure

Parameters based on the probability of gene origin were used to describe genetic variability in three reproductive groups from the Breeding Program for Nellore Cattle (PMGRN). The three reproductive populations (cows in reproductive age, bulls from artificial insemination centers and young bulls in progeny test) generated medium to low values. The effective number of founders (N ... more

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Genetic variability; Pomacentridae; Pomacentrinae; Random amplified polymorphic DNA; Stegastes

The family Pomacentridae comprises about 326 species belonging to 28 genera. The genus Stegastes is composed of nearly 33 species, and 8 are endemic to the Brazilian Province, inhabiting the Brazilian coast (Stegastes fuscus, S. variabilis, S. leucosticus, S. uenfi, and S. pictus) or Western Atlantic oceanic islands (S. trindadensis ... more

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Genetic variability; Microsatellites; Nuclear molecular markers; Population structure; Wading bird

Roseate Spoonbills (Platalea ajaja, Linnaeus) are wading birds present in two of the most important Brazilian wetlands: the Pantanal wetlands and Rio Grande do Sul marshes. Natural populations of these species have not been previously studied with variable nuclear molecular markers. In order to support decision making regarding the management and conservation of these populations, we ... more

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Genetic heterogeneity; Genetic variability; Ochlerotatus taeniorhynchus; Polymorphic microsatellite loci; Venezuelan equine encephalitis virus

In Colombia, the mosquito Ochlerotatus taeniorhyn­chus has been identified as an efficient vector of the epidemic-epi­zootic Venezuelan equine encephalitis virus. We evaluated the ge­netic variability and heterogeneity of this mosquito in Colombian populations using eight microsatellite DNA loci. Two hundred and ten mosquito specimens collected from seven populations of the Co­ ... more

F. Bello; V. Becerra
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Genetic variability; Internal transcribed spacer; Melipona quinquefasciata; nuclear ribosomal DNA; Stingless bee

Melipona quinquefasciata is a ground-nesting South American stingless bee whose geographic distribution was believed to comprise only the central and southern states of Brazil. We obtained partial sequences (about 500-570 bp) of first internal transcribed spacer (ITS1) nuclear ribosomal DNA from Melipona specimens putatively identified as M. quinquefasciata collected ... more

J.O.P. Pereira; B.M. Freitas; D.M.M. Jorge; D.C. Torres; C.E.A. Soares; T.B. Grangeiro

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