Research Article

Related GMR Articles

12/06/2012
Diversity; Population structure; Prawn; Xin’anjiang dam

The oriental river prawn (Macrobrachium nipponense) is an important freshwater prawn species in China. We collected 236 oriental river prawns from four wild stocks from Qiandao Lake, Zhejiang, China, and used nine polymorphic microsatellite markers to investigate their genetic diversity and structure, to facilitate the development of a selective breeding program. We found 185 ... more

K.Y. Ma; J.B. Feng; J.L. Li
05/08/2012
Japanese Spanish mackerel; Microsatellite loci; Population structure; Scomberomorus niphonius

We isolated and characterized 21 polymorphic microsatellite loci in Japanese Spanish mackerel (Scomberomorus niphonius) using a (GT)13-enriched genomic library. Forty individuals were collected from Qingdao, China. We found 3 to 24 alleles per locus, with a mean of 8.8. The observed and expected heterozygosities ranged from 0.263 to 0.975 and from 0.385 to 0.946, with ... more

L. Lin; L. Zhu; S.F. Liu; Q.S. Tang; Y.Q. Su; Z.M. Zhuang
10/07/2014
Aedes albopictus; Arbovirus; COI gene; Penang; Population structure

The mosquito Aedes albopictus is indigenous to Southeast Asian and is a vector for arbovirus diseases. Studies examining the population genetics structure of A. albopictus have been conducted worldwide; however, there are no documented reports on the population genetic structure of A. albopictus in Malaysia, particularly in Penang. We examined the population ... more

M.K.N. Zawani; H.A. Abu; A.B. Sazaly; S.Y. Zary; M.N. Darlina
02/21/2014
Barker frog; Microsatellite; Mitochondrial DNA; Physalaemus; Population structure

The barker frog Physalaemus cuvieri is widely distributed in South America and is found in all regions of Brazil. Significant intraspecific morphological variation in this species has been reported. To determine the genetic structure of the natural Brazilian populations of P. cuvieri, 10 different populations geographically separated by 99.41 to 2936.75 km were evaluated ... more

M. Conte; C.P. Targueta; M.I. Zucchi; A.P. Souza; S.M. Recco-Pimentel
03/31/2015
Ancestry informative markers; Association studies; Brazilian genetic admixture; Ethnicity; Population structure; SNP

Genetic association studies determine how genes influence traits. However, non-detected population substructure may bias the analysis, resulting in spurious results. One method to detect substructure is to genotype ancestry informative markers (AIMs) besides the candidate variants, quantifying how much ancestral populations contribute to the samples’ genetic background. The present study ... more

A.V.C. Coelho; R.R. Moura; C.A.J. Cavalcanti; R.L. Guimarães; P. Sandrin-Garcia; S. Crovella; L.A.C. Brandão
01/15/2015
Evolution; Genetic relationship; Local cultivar; Peach; Population structure; Simple sequence repeat (SSR)

The fruit peach originated in China and has a history of domestication of more than 4000 years. Numerous local cultivars were selected during the long course of cultivation, and a great morphological diversity exists. To study the diversity and genetic background of local peach cultivars in China, a set of 158 accessions from different ecological regions, together with 27 modern varieties ... more

Z.J. Shen; R.J. Ma; Z.X. Cai; M.L. Yu; Z. Zhang
08/07/2007
Genetic diversity; RAPD; Triticum aestivum L.

The degree of genetic divergence was estimated in seven wheat genotypes, six exotic genotypes and one local variety, through random amplified polymorphic DNA methodology. A total of 112 DNA fragments were generated by the 15 random primers, with an average of about 7.4 bands per primer. Among the 112, 50 fragments showed polymorphism among the seven wheat genotypes. Nei and Li’s ... more

A. Iqbal; A.S. Khan; I.A. Khan; F.S. Awan; A. Ahmad; A.A. Khan
10/06/2006
Evolution; Exotic animals; Genetic diversity; Molecular genetic

We examined the variation in mitochondrial DNA by sequencing the D-loop region in wild and domestic (large-white breed) pigs, in hybrids between domestic and wild pigs, and in Monteiro pigs. A D-loop fragment of approximately 330 bp was amplified by PCR. Sequencing of DNA amplicons identified haplotypes previously described as European and Asian types. Monteiro pigs and wild pigs had ... more

S.F. Grossi; J.F. Lui; J.E. Garcia; F.V. Meirelles
08/25/2009
b-carotene; Domestication; Genetic diversity; Indigenous cultivars; Palatability; Vitamin A

Eight cassava (Manihot esculenta Crantz) cultivars, of which four are indigenous to the Amazon region, along with an interspecific hybrid, were assessed for their carotenoid content. They were propagated and are maintained in the living Manihot col­lection at the University of Brasília. The cultivar “Amarelinha do Amapá”, which was collected from the State of Amapá, was ... more

N.M.A. Nassar; P.C. Fernandes; R.D. Melani; O.R.Pires Júnior
04/29/2008
Asteraceae; Eremanthus erythropappus; Genetic diversity; pioneer species; succession; “Candeia”

Eremanthus erythropappus, commonly known as “candeia”,is an abundant pioneer tree species, forming dense populations known as “candeial”, but it is also found in forests at middle stages of succession. Trees from forests are bigger and occur in lower density than in the “candeial”. The objectives of the present study were to investigate if the decrease in population density during ... more

V.L.O. Freitas; J.P. Lemos-Filho; M.B. Lovato

Pages