RESUMEN Fundamento: El cultivo celular permite el análisis directo de las células vivas mediante un microscopio. El estudio de las células contenidas en el líquido amniótico, mediante técnicas de cultivo, detecta anomalías en número y morfología de los cromosomas, que pueden relacionarse con enf...
Abstract Synthetic polyploids are key breeding materials for watermelon. Compared with diploid watermelon, the tetraploid watermelon often exhibit wide phenotypic differences and differential gene expression. Digital gene expression (DGE) profile technique was performed in this study to present gene exp...
The growth of the tropical flower market has demanded a consistent search for new varieties, primarily those endowed with an exotic profile, but that are also beautiful and durable. The genusHeliconia, naturally found in the Amazon region, is among the most prominent of tropi...
Abstract Chromosome stoichiometry, a form of genetic plasticity, specifically refers to variation in the standard diploid genomic composition of an individual or species. In the present work, freshwater planarians (Girardia schubarti) were analyzed to recognize variations in chromosomal stoichiometry esp...
En este artículo se presentan algunos aspectos relacionados con el aborto espontáneo de etiología cromosómica, haciendo énfasis en los diversos tipos de alteraciones, su frecuencia, su expresión fenotípica y las técnicas modernas de diagnóstico citogenético...
Se informa acerca de un caso de síndrome poliploide en un recién nacido con cariotipo 46 XY, el cual presentaba diversas malformaciones señaladas en los pocos casos que han aparecido en la literatura, presentando, además, atresia de esófago con fístula gastrobronquial...
Realizou-se um acompanhamento da resposta destes anfíbios à indução de anemia hemolítica pela fenilhidrazina, dentro de uma cinética de 7 pontos, abrangendo o estágio pré-anêmico, considerado normal e no 5º, 10º, 15º, 20º, 30º e 50º dias após a anemização, durante a maturação eritroci...
Precocious adults from 2nd and 3rd instar larvae of the desert locust Schistocerca gregaria were used to assess the competence of their fat body to synthesize DNA in response to a juvenile hormone analog (JHA), hydoprene. Autoradiographic studies show that JHA stimulates DNA synthesis since a significant...
