Estimativas de parâmetros genéticos e fenotípicos para medidas morfométricas de zangões Apis mellifera L. (Hymenoptera: Apidae) à emergência

Abstract

The objective of this study was to estimate genetic and phenotypic parameters for morphometric measurements of Apis mellifera Africanized drones to the emergency. The database consists of 1117 drone’s children nine queens. The evaluated characteristics were weight to the emergency, full length, length and width of the abdomen and the upper wing. For the estimation of genetic parameters was used MTGSAM software that comes Bayesian inference. Phenotypic means and standard deviations were 240.78 ± 21.39 mg, 16.56 ± 0.81 mm, 7.98 ± 0.79 mm, 5.58 ± 0.34 mm, 12.23 ± 0 66 mm 3.92 ± 0.29 mm for emergency weight, total length, length and width of the abdomen and length and width of the wing, respectively. The heritability in unicaracterística analysis was 0.78, 0.47, 0.44, 0.16, 0.36 and 0.20 weight characteristics for the emergency total length, length and width of abdomen and width upper wing, respectively. In bivariate analysis showed heritability values from .17 to .90. In bivariate analysis, we observed average magnitude values high (0.14 to 0.76) and positive character to the genetic correlations between weight to emergency and other features. Obtained positive correlations and low average magnitudes (0.16 to 0.54) in weight to emergency and other features. This shows that besides the direct gain in the characteristic weight, because the magnitude of its heritability, selection for this feature is possible to achieve indirect gains in other characteristics. So, the emergence of weight characteristic drones can be used in breeding programs in Apis mellifera.