Dna
Genetic diversity of Angiopolybia pallens (Lepeletier) (Hymenoptera, Vespidae, Polistinae) explained by the disjunction of South American rainforests
Authors: A.F. Carvalho, G.M.M. Santos, R.S.T. Menezes and M.A. Costa
Angiopolybia pallens is a swarm-founding wasp that occurs in Atlantic and Amazonian rainforests, which have been isolated from each other by a large arid corridor in central Brazil since the Tertiary. In this study, we used data from polymerase chain reaction-restriction fragment length polymorphism of 16S rDNA to infer some a.. Read More»
- Genet. Mol. Res. 13(1):
- 2014.January.8.7
- DOI:
- 10.4238/2014.January.8.7
DNA extraction from bristles and quills of Chaetomys subspinosus (Rodentia: Erethizontidae) using a novel protocol
Authors: C.G. Oliveira, R.A. Martinez, F.A. Gaiotto
DNA extraction protocols are as varied as DNA sources. When it comes to endangered species, it is especially important to pay attention to all details that ensure the completion of the study goals and effectiveness in attaining useful data for conservation. Chaetomys subspinosus (Rodentia: Erethizontidae) is a secretive arbore.. Read More»
- Genet. Mol. Res. 6(3):
cDNA-AFLP transcriptional profiling reveals genes expressed during flower development in Oncidium Milliongolds
Authors: X. Qian, M.J. Gong*, C.X. Wang and M. Tian
The flower developmental process, which is crucial to the whole lifecycle of higher plants, is influenced by both environmental and endogenous factors. The genus Oncidium is commercially important for cut flower and houseplant industry and is ideal for flower development studies. Using cDNA-amplified restriction fragm.. Read More»
- Genet. Mol. Res. 13(3):
- 2014.February.21.5
- DOI:
- 10.4238/2014.February.21.5
Haplotype distribution of five nuclear genes based on network genealogies and Bayesian inference indicates that Trypanosoma cruzi hybrid strains are polyphyletic
Authors: L. Tomazi, S.Y. Kawashita, P.M. Pereira, B. Zingales andM.R.S. Briones
Chagas disease is still a major public health problem in Latin America. Its causative agent, Trypanosoma cruzi, can be typed into three major groups, T. cruzi I, T. cruzi II and hybrids. These groups each have specific genetic characteristics and epidemiological distributions. Several highly virulent strains are found in the h.. Read More»
- Genet. Mol. Res. 8(2):
- vol8-2gmr591
- DOI:
- 10.4238/vol8-2gmr591
DNA methylation in sugarcane somaclonal variants assessed through methylation-sensitive amplified polymorphism
Authors: J.H.M.B. Francischini, E.L. Kemper, J.B. Costa, J.R.V. Manechini and L.R. Pinto
Micropropagation is an important tool for large-scale multiplication of plant superior genotypes. However, somaclonal variation is one of the drawbacks of this process. Changes in DNA methylation have been widely reported as one of the main causes of somaclonal variations in plants. In order to investigate the occurrence of ch.. Read More»
- Genet. Mol. Res. 16(2):
- gmr16029585
- DOI:
- 10.4238/gmr16029585
Unraveling the variability and genetic structure of barker frog Physalaemus cuvieri (Leiuperinae) populations from different regions of Brazil
Authors: M. Conte, C.P. Targueta, M.I. Zucchi, A.P. Souza and S.M. Recco-Pimentel
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 se.. Read More»
- Genet. Mol. Res. 13(3):
- 2014.February.21.4
- DOI:
- 10.4238/2014.February.21.4
Characteristics of Cyclin B and its potential role in regulating oogenesis in the red claw crayfish (Cherax quadricarinatus)
Authors: L.M. Wang, W.W. Lv, D. Zuo, Z.J. Dong and Y.L. Zhao
Cyclin B is a regulatory subunit of maturation-promoting factor (MPF), which has a key role in the induction of meiotic maturation of oocytes. MPF has been studied in a wide variety of animal species; however, its expression in crustaceans is poorly characterized. In this study, the complete cDNA sequence of Cyclin B was cloned from the red claw crayfish,.. Read More»
- Genet. Mol. Res. 14(3):
- http://dx.doi.org/2015.September.9.17
- DOI:
- http://dx.doi.org/10.4238/2015.September.9.17
B chromosome prevalence and physical mapping of 18S rDNA and H4 histone sites in the grasshopper Xyleus discoideus angulatus (Romaleidae)
Authors: C.B. Machado, L.C. Silva Neto, V. Loreto and M.J. Souza
We sampled 11 natural populations of the grasshopper Xyleus discoideus angulatus in Northeastern Brazil to analyze B chromosome frequency and meiotic behavior. We observed a single large B chromosome, resembling the X chromosome, in 29 of the 402 specimens. Eight of the 11 populations had B chromosomes, with a rather .. Read More»
- Genet. Mol. Res. 13(3):
- 2014.March.26.4
- DOI:
- 10.4238/2014.March.26.4
Genetic and epigenetic status of triple exotic consanguinity cotton introgression lines
Authors: S.P. He, J.L. Sun and X.M. Du
Introgression lines are some of the most important germplasm for breeding applications and other research conducted on cotton crops. The DNA methylation level among 10 introgression lines of cotton (Gossypium hirsutum) and three exotic parental species (G. arboreum, G. thurberi and G. barbadense) were assessed by methylation-s.. Read More»
- Genet. Mol. Res. 10(4):
- 2011.October.3.1
- DOI:
- 10.4238/2011.October.3.1
Morphometric and genetic changes in a population of Apis mellifera after 34 years of Africanization
Authors: T.M. Francoy, D. Wittmann, V. Steinhage, M. Drauschke, S. M�¼ller, D.R. Cunha, A.M. Nascimento, V.L.C. Figueiredo, Z.L.P. Sim�µes, D. De Jong, M.C. Arias and L.S. Gon�§alves
Though the replacement of European bees by Africanized honey bees in tropical America has attracted considerable attention, little is known about the temporal changes in morphological and genetic characteristics in these bee populations. We examined the changes in the morphometric and genetic profiles of an Africanized honey b.. Read More»
- Genet. Mol. Res. 8(2):