Research Article

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Animals; Bayes Theorem; Brazil; Evolution, Molecular; Fishes; Genetic variation; Genetics, Population; Microsatellite Repeats

Genetic variability is one of the important criteria for species conservation decisions. This study aimed to analyze the genetic diversity and the population differentiation of two natural populations of Arapaima gigas, a species with a long history of being commercially exploited. We collected 87 samples of A. gigas from Grande Curuai Lake and Paru Lake, located in the Lower Amazon region of ... more

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Camellia; cluster analysis; DNA, Plant; Genetic variation; Genotype; Microsatellite Repeats; Phylogeny

Camellia japonica produces different color and bigger flowers, widely being used for gardening green in southern China. However, cultivars were introduced from different regions, but their origin and pedigree information is either not available poorly documented, causing problems in authentication. Many low-yield trees in Camellia oleifera forests have been used as stocks for grafting C. ... more

Y. Zhao; C.J. Ruan; G.J. Ding; S. Mopper
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Animals; Brazil; Conservation of Natural Resources; Female; Gene frequency; Genotype; male; Microsatellite Repeats; Sexual Behavior, Animal; Turtles

The aim of the present study was to investigate the reproductive behavior of the giant Amazon River turtle (Podocnemis expansa) in the Amazon. This was carried out by estimating the degree of polymorphism in five DNA microsatellites in a sample of 359 hatchlings from 12 nests in the Mamirauá Sustainable Development Reserve in the municipality of Tefé, state of Amazonas, Brazil. An analysis of ... more

C. Fantin; J. Morais; R. Botero-Arias; C. Araújo; C. Camillo; I.P. Farias
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Cell Nucleus; Chloroplasts; DNA Primers; Genetic markers; Microsatellite Repeats; Mimosa; Sequence Analysis, DNA; Species Specificity; Tetraploidy

Mimosa scabrella Benth., popularly known as ''bracatinga'', is a pioneer and endemic species of Brazil, occurring in Mixed Ombrophilous Forest associated with Brazilian Atlantic Rainforest biomes. It is a fast-growing tree of the Fabaceae family that facilitates the dynamics of ecological succession. SSR development, when there is no genome sequence, is time and labor intensive and there are ... more

F.A. Saiki; A.P. Bernardi; M.S. Reis; H. Faoro; E.M. Souza; F.O. Pedrosa; A. Mantovani; A.F. Guidolin
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Bayes Theorem; Casearia; Chloroplasts; Conservation of Natural Resources; Discriminant analysis; DNA, Chloroplast; Genetic variation; Genetics, Population; Haplotypes; Microsatellite Repeats

Casearia grandiflora (Salicaceae) is a typical Cerrado species adapted to disturbed environments, making it useful for restoration projects. Knowledge of genetic diversity is important for establishing conservation strategies for this species. This study aimed to compare chloroplast haplotype diversity and structure of C. grandiflora, under the assumption that protected areas hold greater ... more

M.F. Costa; A.A. Pereira; J.B. Pinheiro; M.I. Zucchi; A.S.F. Araújo; R.L.F. Gomes; S.E.S. Valente; M.E.A. Oliveira; A.C.A. Lopes
2/23/2017
Analysis of variance; Anthocyanins; China; Chromatography, High Pressure Liquid; cluster analysis; Color; Conservation of Natural Resources; Endangered species; Flowers; Genetic markers; Genetic variation; Magnolia; Microsatellite Repeats; Phenotype; Phylogeny; Pigmentation; Plant breeding; Species Specificity

A combination of phenotypic characterization and molecular markers may provide reliable information on new plant varieties and elucidate the conservation status of rare species. Five newly developed Magnolia wufengensis cultivars, an endangered plant species endemic to Hubei Province, China, possess more distinctive phenotypes than common Magnolia cultivars. With reference to a wild species ... more

L. Wang; A.H. Xiao; L.Y. Ma; F.J. Chen; Z.Y. Sang; J. Duan
3/16/2017
Animals; Base Sequence; Conserved sequence; Disease resistance; Evolution, Molecular; Genetic markers; Genetic variation; Genotype; Microsatellite Repeats; Phylogeny; Plant Diseases; Plant Proteins; Psidium; Tylenchoidea

Guava (Psidium guajava L.) crop is severely affected by the nematode Meloidogyne enterolobii. Native Psidium species have been reported as sources of resistance against this nematode. Knowledge on the molecular relationship between Psidium species based on plant resistance gene analogs (RGA) can be useful in the genetic breeding of guava for resistance to M. enterolobii. In this study, RGA ... more

L.R. Noia; A.C. Tuler; A. Ferreira; M.F.S. Ferreira
3/30/2017
Alleles; Animals; Brazil; Breeding; Chromosome Mapping; DNA; Genetic Drift; Genetic variation; Genetics, Population; Genotype; Goats; Heterozygote; Microsatellite Repeats

The aim of this study was to access the genetic diversity and relatedness between Canindé and British Alpine goat breeds in the States of Piauí and Ceará using microsatellite markers. Genomic DNA was isolated from hair samples of 99 goats belonging to six different flocks. A panel of polymorphic heterologous microsatellite loci was used to genotype individuals. The microsatellite markers ... more

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Chromosomes, Plant; DNA methylation; DNA, Plant; Epigenesis, Genetic; Evolution, Molecular; Genetic variation; Genome, Plant; Microsatellite Repeats; Polyploidy; Random Amplified Polymorphic DNA Technique; Triticum

We used the conventional and methylation-sensitive randomly amplified polymorphic DNA (RAPD) and inter-simple sequence repeat (ISSR) analyses to assess genome-wide changes and explore the relationships between genetic and epigenetic variations among individuals of a newly synthesized allohexaploid wheat line whose genomic constitution is identical to that of the natural common wheat, compared ... more

T. Qiu; Y.Z. Dong; X.M. Yu; N. Zhao; Y.F. Yang
4/5/2017
Alleles; Biomass; Genetic variation; Introduced species; Microsatellite Repeats; Sapium; Trees; United States

Chinese tallow (Triadica sebifera) is an important crop and ornamental tree. After it was introduced into the USA, it gradually became a noxious invasive tree in south-eastern America since the middle of the 1900s. Because only six microsatellites were reported previously in T. sebifera, to better understand the genetic diversity and population dynamics of such species, we reported here 28 new ... more

Y.F. Zhuang; Z.F. Wang; L.F. Wu

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