Artículos de revistas
Cytogenetic study on three species of the genus Triatoma (Heteroptera: Reduviidae) with emphasis on nucleolar organizer regions
Fecha
2005-12-01Registro en:
Caryologia, v. 58, n. 4, p. 293-299, 2005.
0008-7114
10.1080/00087114.2005.10589466
WOS:000235607600001
2-s2.0-33751282016
6045437265946340
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
The use of banding techniques allows the recognition of chromosomal pairs and karyotypical arrangements. However, its application in Heteroptera holocentric chromosomes is limited. Thus, little is known about their structure, specially their Nucleolar Organizer Regions (NORs). A comparative analysis of the nucleolar characteristics present during spermatogenesis in Triatoma platensis, Triatoma protacta and Triatoma tibiamaculata seems to indicate that in this group of insects nucleolar fragmentation occurs after prophase I. The study of chromosomal structure of these triatomines indicates that NORs are located at some telomeric and interstitial autosome regions and at sexual chromosomes (X/X1X2).