Genetics
Biotools: an R function to predict spatial gene diversity via an individual-based approach
Authors: A.R. da Silva, G. Malafaia and I.P.P. Menezes
The gene diversity or expected heterozygosity (HE) is based on the allele frequency and is often used as a measure of genetic variability of populations. Knowing the pattern of spatial distribution of HE can be useful for determining strategies of conservation and sampling of collections of individuals. In addition, it can all.. Read More»
- Genet. Mol. Res. 16(2):
- gmr16029655
- DOI:
- 10.4238/gmr16029655
Chromosomal evolution in large pelagic oceanic apex predators, the barracudas (Sphyraenidae, Percomorpha)
Authors: R.X. Soares, M.B. Cioffi, L.A.C. Bertollo, A.T. Borges, G.W.W.F. Costa and W.F. Molina
Sphyraena (barracudas) represents the only genus of the Sphyraenidae family and includes 27 species distributed into the tropical and subtropical oceanic regions. These pelagic predators can reach large sizes and, thus, attracting significant interest from commercial and sport fishing. Evolutionary data for this fish group, as.. Read More»
- Genet. Mol. Res. 16(2):
- gmr16029644
- DOI:
- 10.4238/gmr16029644
Karyotypic studies of Cratylia argentea (Desv.) O. Kuntze and C. mollis Mart. ex Benth. (Fabaceae - Papilionoideae)
Authors: S.M. Vargas, G.A. Torres, F.S. Sobrinho, A.V. Pereira, L.C. Davide
Cratylia argentea and C. mollis (Fabaceae-Papilionoideae) are legume shrubs native to the Cerrado and Caatinga, respectively. Both species show great resistance to drought and high nutritive value, which makes them a valuable forage resource in tropical regions. Cytogenetic studies were carried out on accessions of C. argentea.. Read More»
- Genet. Mol. Res. 6(3):
New loci of Lychnophora ericoides and transferability to Lychnophora pinaster, endangered medicinal species from Brazil
Authors: M.A.R. Vieira, M.O.M. Marques, L.L. Haber, B.B.Z. Vigna, M.M. Bajay, J.B. Pinheiro, A.P. Souza, J. Semir and M.I. Zucch
Lychnophora ericoides and Lychnophora pinaster are species used in popular medicine as analgesic or anti-inflammatory 21 simple sequence repeat loci of L. ericoides were developed and transferred to L. pinaster. Three populations of L. ericoides and 2 populations of L. pinaster were evaluated; they were collected in the State of Minas Gerais. Population p.. Read More»
- Genet. Mol. Res. 13(4):
- 2014.December.19.8
- DOI:
- 10.4238/2014.December.19.8
Validation of a reaction volume reduction protocol for analysis of Y chromosome haplotypes targeting DNA databases
Authors: C.A. Souza, T.C. Oliveira, S. Crovella, S.M. Santos, K.C.N. Rab�ªlo, E.P. Soriano, M.V.D. Carvalho, A.F. Caldas Junior, G.G. Porto, R.I.C. Campello, A.A. Antunes, R.A. Queiroz and S.M. Souza
The use of Y chromosome haplotypes, important for the detection of sexual crimes in forensics, has gained prominence with the use of databases that incorporate these genetic profiles in their system. Here, we optimized and validated an amplification protocol for Y chromosome profile retrieval in reference samples using lesser .. Read More»
- Genet. Mol. Res. 16(2):
- gmr16029652
- DOI:
- 10.4238/gmr16029652
Mendelian inheritance, genetic linkage, and genotypic disequilibrium for nine microsatellite loci in Cariniana estrellensis (Raddi) Kuntze (Lecythidaceae)
Authors: T.Y.K. Kubota, A.M. Silva, J. Cambuim, A.A. Silva, S. Pupin, M.S. Silva, M.A. Moraes, M.L.T. Moraes and A.M. Sebbenn
Cariniana estrellensis is one of the largest trees found in Brazilian tropical forests. The species is typical of advanced stages of succession, characteristic of climax forests, and essential in genetic conservation and environmental restoration plans. In this study, we assessed Mendelian inheritance, genetic linkage, and gen.. Read More»
- Genet. Mol. Res. 16(2):
- gmr16029653
- DOI:
- 10.4238/gmr16029653
Microsatellite markers for the Cabre�ºva tree, Myroxylon peruiferum (Fabaceae), an endangered medicinal species from the Brazilian Atlantic Forest
Authors: K.D. Schwarcz, M.M. Bajay, C.M.T. Macrini, V.L.P. Salazar, A.P. Souza, J.B. Pinheiro, P.H.S. Brancalion, R.R. Rodrigues and M.I. Zucchi
The Cabreúva tree, Myroxylon peruiferum, is an endangered tropical species from Brazil used in forest restoration projects. It is known for its medicinal properties. Eleven microsatellite markers were developed for this species, from a microsatellite-enriched library. Nine of these markers, characterized in 30 .. Read More»
- Genet. Mol. Res. 13(3):
- 2014.March.26.1
- DOI:
- 10.4238/2014.March.26.1
Production and genetic characterization of interspecific hybrids among Crambe abyssinica, Crambe hispanica and Crambe kralikii
Authors: X.Z. Du, B.L. Huang, H. Guan, Z.Y. Li and B.Q. Huang
In this paper, interspecific crosses among Crambe abyssinica, Crambe hispanica, and Crambe kralikii were reported. In the C. hispanica x C. abyssinica (H x A) cross, 118 F1 hybrids were produced without embryo rescue, while 5 F1 hybrids were obtained with embryo rescue, when C. .. Read More»
- Genet. Mol. Res. 13(3):
- 2014.March.26.2
- DOI:
- 10.4238/2014.March.26.2
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
Isolation and characterization of polymorphic microsatellite loci in Aleurodicus dispersus (Hemiptera, Aleyrodidae)
Authors: G.-C. Ma, X. Wu, C.-L. Ma, H.-L. Wu, H.-Y. Hu, L.-M. Niu and Y.-G. Fu
Ten microsatellite markers were isolated and characterized from Aleurodicus dispersus, the spiraling whitefly, an exotic pest species that is considered to be one of the most serious agricultural pests on Hainan Island, China. The polymorphism of these loci was examined in individual whiteflies from Hainan Island and from the .. Read More»
- Genet. Mol. Res. 10(4):
- 2011.October.18.2
- DOI:
- 10.4238/2011.October.18.2