Research Article

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07/25/2011
D-loop; Genetic diversity; Mitochondrial gene; Persian Gulf; Phylogenetic analysis; Sea turtles

Genetic diversity of sea turtles (hawksbill turtle) was studied using sequencing of mitochondrial DNA (mtDNA, D-loop region). Thirty dead embryos were collected from the Kish and Qeshm Islands in the Persian Gulf. Analysis of sequence variation over 890 bp of the mtDNA control region revealed five haplotypes among 30 individuals. This is the first time that Iranian haplotypes have been ... more

M. Tabib; H. Zolgharnein; M. Mohammadi; M.A. Salari-Aliabadi; A. Qasemi; S. Roshani; H. Rajabi-Maham; F. Frootan
04/12/2011
Cytochrome b; D-loop; Iban; Malay; Orang Asli

Malaysia remains as a crossroad of different cultures and peoples, and it has long been recognized that studying its population history can provide crucial insight into the prehistory of Southeast Asia as a whole. The earliest inhabitants were the Orang Asli in Peninsular Malaysia and the indigenous groups in Sabah and Sarawak. Although they were the earliest migrants in this region, ... more

K.C. Ang; J.W.H. Leow; W.K. Yeap; S. Hood; M.C. Mahani; B.M. Md-Zain
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Age-at-oneset; D-loop; Non-small cell lung carcinoma; Single nucleotide polymorphisms

The associations between single nucleotide polymorphisms (SNPs) in the displacement loop (D-loop) of mitochondrial DNA (mtDNA) and cancer risk and disease outcome have been extensively analyzed. We investigated the association between age-at-onset and SNPs in the mitochondrial D-loop using a population-based series of non-small cell lung cancer (NSCLC) patients. The D-loop region of ... more

W.X. Hu; C.M. Ding; R.J. Li; H.Y. Fan; Z.J. Guo; W. Liu
10/05/2007
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

P.A. Vozzi; C.R. Marcondes; L.A.F. Bezerra; R.B. Lôbo
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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

C.I. Miño; S.N. Del Lama
07/31/2006
Coalescent theory; Pairwise differences; Population structure; Refugia

The climatic fluctuations of the Quaternary have influenced the distribution of numerous plant and animal species. Several species suffer population reduction and fragmentation, becoming restricted to refugia during glacial periods and expanding again during interglacials. The reduction in population size may reduce the effective population size, mean coalescence time and genetic ... more

F.F. Jesus; J.F. Wilkins; V.N. Solferini; J. Wakeley
12/30/2005
Cebus apella; DNA polymorphisms; Microsatellites; Population structure; Short tandem repeats; Tufted capuchins

There have been numerous studies genetically characterizing Old World Primates using microsatellites. However, few studies have been made of New World species and none on free-ranging Cebus apella, even though it is probably the most widely distributed species of monkey in the New World. The paucity of studies is due, in part, to the lack of polymorphisms described for this species. We ... more

J.Margareth Amaral; A.Luiz Simões; D. De Jong
11/09/2011
Dispersal; Mitochondrial DNA; Onychophora; Population expansion; Population structure

Epiperipatus acacioi (Onychophora: Peripatidae) is an endemic species of the Atlantic rainforest in southeastern Brazil, with a restricted known distribution, found only in two nearby areas (Tripuí and Itacolomi). Mitochondrial gene COI sequences of 93 specimens collected across the known range of E. acacioi were used to assess the extant genetic diversity and patterns ... more

G.A. Lacorte; I.S. Oliveira; C.G. Fonseca
07/19/2011
Frogs; Microsatellites; Physalaemus; Population structure; Related species

Various species of the Physalaemus cuvieri group of frogs are difficult to distinguish morphologically, making molecular analysis an attractive alternative for indentifying members of this group, which is considered to be at risk because of loss of habitat. The genetic structure of natural populations of P. ephippifer and P. albonotatus species was investigated ... more

M. Conte; M.I. Zucchi; G.V. Andrade; A.P. Souza; S.M. Recco-Pimentel
05/03/2011
Engraulis japonicus; Japanese anchovy; Microsatellite loci; Population structure

We isolated and characterized 14 polymorphic microsatellite loci in the Japanese anchovy (Engraulis japonicus) using a (GT)13-enriched genomic library. The numbers of alleles per locus ranged from 6 to 31, with a mean of 17.8. The observed and expected heterozygosities ranged from 0.180 to 0.949 and from 0.172 to 0.966, with means of 0.731 and 0.825, respectively. All 14 loci ... more

L. Lin; L. Zhu; S.F. Liu; Y.Q. Su; Z.M. Zhuang

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