Exon 1

Novel polymorphism in exon 1 of the melatonin receptor gene unassociated with reproductive characteristics of buffaloes in the Amazon Region

E. M. Barbosa, Souza, B. B., Guimarães, R. C., Azevedo, J. S. N., Gonçalves, E. C., Ribeiro, H. F. L., Filho, S. T. Rolim, E. Filho, S., Barbosa, E. M., Souza, B. B., Guimarães, R. C., Azevedo, J. S. N., Gonçalves, E. C., Ribeiro, H. F. L., Filho, S. T. Rolim, and E. Filho, S., Novel polymorphism in exon 1 of the melatonin receptor gene unassociated with reproductive characteristics of buffaloes in the Amazon Region, vol. 15, p. -, 2016.

The objective of this study was to sequence part of the exon 1 in the melatonin receptor 1A gene (MTRN1A) in buffaloes to detect a novel polymorphism with which to associate reproductive characteristics, such as age at first birth and the interval between births, in buffaloes from the northeastern region of the State of Pará (Brazil). Buffalo hair samples (77) were collected from the Terra Firme region of Pará. DNA was extracted and polymerase chain reactions (PCRs) were carried out with a primer that was designed using the GenBank accession No. AY524665 reference sequence.

Novel polymorphism in exon 1 of the melatonin receptor gene unassociated with reproductive characteristics of buffaloes in the Amazon Region

E. M. Barbosa, Souza, B. B., Guimarães, R. C., Azevedo, J. S. N., Gonçalves, E. C., Ribeiro, H. F. L., Filho, S. T. Rolim, and E. Filho, S., Novel polymorphism in exon 1 of the melatonin receptor gene unassociated with reproductive characteristics of buffaloes in the Amazon Region, vol. 15, p. -, 2016.

The objective of this study was to sequence part of the exon 1 in the melatonin receptor 1A gene (MTRN1A) in buffaloes to detect a novel polymorphism with which to associate reproductive characteristics, such as age at first birth and the interval between births, in buffaloes from the northeastern region of the State of Pará (Brazil). Buffalo hair samples (77) were collected from the Terra Firme region of Pará. DNA was extracted and polymerase chain reactions (PCRs) were carried out with a primer that was designed using the GenBank accession No. AY524665 reference sequence.

Myf5 gene polymorphisms and production performance traits in Songliao white geese

J. B. Wu, Cao, L. P., Li, M. M., Du, N. N., Huang, H. L., and Jin, Y., Myf5 gene polymorphisms and production performance traits in Songliao white geese, vol. 12, pp. 6052-6058, 2013.

To explore the relationship between Myf5 gene polymorphisms and production performance traits in Songliao white geese, we used the chicken Myf5 sequence to design primers and amplified part of the exon 1 sequence of the Songliao white goose Myf5 gene. Results of single-strand conformation polymorphism polymerase chain reaction analysis revealed polymorphisms of the amplified fragment, including three genotypes (AA, AB, and BB). Three varieties were dominated by allele A and were mainly expressed in AA genotypes.

Association between male infertility and androgen receptor mutations in Brazilian patients

C. O. A. Melo, Danin, A. R., Silva, D. M., Tacon, J. A., Moura, K. K. V. O., Costa, E. O. A., and da Cruz, A. D., Association between male infertility and androgen receptor mutations in Brazilian patients, vol. 9, pp. 128-133, 2010.

The androgen receptor is encoded by a single-copy gene located in the long arm of the X chromosome (Xq11-12); it consists of eight exons and encodes an intracellular transcription factor that belongs to the steroid/nuclear receptor superfamily. Disturbances in the function of the androgen receptor can lead to several forms of male pseudohermaphroditism, such as androgen insensitivity syndrome, which can lead to infertility. Infertility affects around 20% of couples, and in half of the cases it is a male problem.

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