Research Article

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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

P.A. Vozzi; C.R. Marcondes; L.A.F. Bezerra; R.B. Lôbo
06/28/2011
Allele frequency; Gene diversity; Gene flow; Reduced median network; Salinity tolerance

Salicornia spp is one of the most salt-tolerant vascular plants and is native to salt marshes and estuaries. We developed expressed sequence tag derived-simple sequence repeat (EST-SSR) markers for estimating genetic diversity and marker-assisted Salicornia breeding. Six polymorphic EST-SSRs of 40 detected 27 alleles, ranging from three to five alleles per locus. The ... more

Z.L. Xu; Z. Ali; J.X. Yi; X.L. He; D.Y. Zhang; G.H. Yu; A.A. Khan; I.A. Khan; H.X. Ma
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cpDNA inheritance; Gene flow; Pollen flow; Seed dispersion; Spatial genetic structure

Solanum lycocarpum (Solanaceae) is a woody species found in the Brazilian Cerrado. The flowers are pollinated by Xylocopa spp bees, and seeds are dispersed by mammals with distinct home range sizes. As a consequence, relative contributions of pollen and seeds to overall gene flow can vary according to different spatial scales. We studied the genetic structure of four ... more

K. Martins; L.J. Chaves; R. Vencovsky; P.Y. Kageyama
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A+T-rich region; Cnaphalocrocis medinalis; Gene flow; Genetic diversity; ITS2; Population genetics

The population genetics of the migratory rice leaf roller, Cnaphalocrocis medinalis (Lepidoptera: Pyralidae), was characterized using the maternally inherited mitochondrial A+T-rich region and bi-parentally inherited nuclear internal transcribed spacer 2 (ITS2). One hundred and eighty-seven specimens of the rice leaf roller collected from 13 Korean and Chinese localities revealed ... more

X. Wan; J. Li; M.J. Kim; T.H. Kang; B.R. Jin; I. Kim
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Gene flow; mtDNA; NCPA; Neophocaena phocaenoides

The finless porpoise (Neophocaena phocaenoides) is a small cetacean whose survival is largely affected by human activity. The characteristics and structures of 3 populations in China and 4 to 5 populations in Japan have been well documented, although their history and origins remain poorly understood. In this study, nested clade phylogeographical analysis was applied to mtDNA ... more

L. Li; J. Jiang; X. Wang; X. Jiang
05/14/2013
Gene flow; Genetic diversity; Lepidoptera evolution; Management units; Microsatellite; Population genetics

We present polymorphic microsatellite markers isolated for genetic studies of the sugarcane borer, Diatraea saccharalis (Fabricius). We isolated 16 microsatellite loci through an enriched genomic library protocol. After characterization, 12 markers showed polymorphic information expressed in the observed number of alleles (ranging from 2 to 7; 5 on average) and in the ... more

V.A.C. Pavinato; K.L. Silva-Brandão; M. Monteiro; M.I. Zucchi; J.B. Pinheiro; F.L.F. Dias; C. Omoto
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Gene flow; Genetic conservation; Genetic diversity; Microsatellite marker; Population differentiation; Wolf fruit

Solanum lycocarpum is a woody tree widely distributed in the Cerrado that reaches high population densities in disturbed environments. We examined the genetic diversity and population differentiation of six S. lycocarpum populations with different degrees of human disturbance in order to determine if they are negatively affected by anthropogenic activity. Three ... more

T.M. Moura; K. Martins; P.S. Sujii; A.M. Sebbenn; L.J. Chaves
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Acroporidae; Gene flow; Genetic markers; Genotyping; Marker transferability; South-east Africa

Here, we report the successful cross-species amplification of previously published acroporid microsatellite markers in the coral Acropora austera from the south-western Indian Ocean. This fast-growing species is a major reef-building coral on South African reefs; however, it is the most damaged coral by scuba diving activity, and is known to be very susceptible to coral bleaching ... more

P.H. Montoya-Maya; A.H.H. Macdonald; M.H. Schleyer