A genomic DNA library of Anopheles aquasalis Curry was screened for clones that hybridized more intensely to DNA from A. aquasalis than to DNA from A. benarrochi Gabaldon, Cova Garcia, and Lopez, A. konderi Galvao and Damasceno, A. nuneztovari Gabaldon cytotypes A, B, and C, A. oswaldoi (Peryassu), A. rangeli Gabaldon, Cova Garcia, and Lopez, or A. trinkae Faran. Two specific clones (2.5 kiloba...

Whole-genome duplication (polyploidy) occurs frequently and repeatedly within species, often forming new lineages that contribute to biodiversity, particularly in plants. Establishment and persistence of new polyploids may be thwarted by competition with surrounding diploids; however, climatic niche shifts, where polyploids occupy different niches than diploid progenitors, may help polyploids o...

Abstract This study aimed to identify species of Astyanax bimaculatus group from four Itaipu Reservoir tributaries (Paraná River Basin) by cytogenetics and molecular markers (COI) investigate the possible occurrence cryptic diversity in part this basin. The populations showed only one karyotype formula simple AgNORs. FISH with 18S rDNA probe a high variation, 5S probes evidenced sites most spec...

random genetic drift, mutation, and natural selection combined with environmental variation due to latitude, Switchgrass (Panicum virgatum L.) is a widely adapted warmaltitude, soil type, and precipitation have resulted in season perennial that has considerable potential as a biofuel crop. significant genetic and phenotypic variation in switchEvolutionary processes and environmental factors hav...