FISH

DNA barcoding reveals high levels of genetic diversity in the fishes of the Itapecuru Basin in Maranhão, Brazil

M. H. S. Nascimento, Almeida, M. S., Veira, M. N. S., D. Filho, L., Lima, R. C., Barros, M. C., Fraga, E. C., Nascimento, M. H. S., Almeida, M. S., Veira, M. N. S., D. Filho, L., Lima, R. C., Barros, M. C., and Fraga, E. C., DNA barcoding reveals high levels of genetic diversity in the fishes of the Itapecuru Basin in Maranhão, Brazil, vol. 15, p. -, 2016.

DNA barcoding is a useful complementary tool for use in traditional taxonomic studies due to its ability to detect cryptic species, and may be particularly efficient in the identification of fish species. The fish fauna of the Itapecuru River represents an important fishery resource in the Brazilian State of Maranhão, although it is currently suffering increasing degradation as a result of anthropogenic impacts. Therefore, DNA barcoding was used in the present study to identify fish species and establish a database of the rich freshwater fish fauna of Maranhão.

A rare case of trisomy 11q23.3-11q25 and trisomy 22q11.1-22q11.21

P. - S. Zou, Li, H. - F., Chen, L. - S., Ma, M., Chen, X. - H., Xue, D., Cao, D. - H., Zou, P. - S., Li, H. - F., Chen, L. - S., Ma, M., Chen, X. - H., Xue, D., and Cao, D. - H., A rare case of trisomy 11q23.3-11q25 and trisomy 22q11.1-22q11.21, vol. 15, p. -, 2016.

Partial duplication of the long arm of chromosome 11 and the partial trisomy of 22q are uncommon karyotypic abnormalities. Here, we report the case of a 6-year-old girl who showed partial trisomy of 11q and 22q, as a result of a maternal balanced reciprocal translocation (11;22), and exhibited dysmorphic features, severe intellectual disability, brain malformations, and speech delay related to this unique chromosomal abnormality. Array comparative genomic hybridization (array CGH) revealed a gain in copy number on the long arm of chromosome 11, spanning at least 18.22 Mb.

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