|
|
|
|
|
| Borges,Andreia A.; Humann,Fernanda C.; Campos,Lucio A. Oliveira; Tavares,Mara G.; Hartfelder,Klaus. |
| In Hymenoptera, homozygosity at the sex locus results in the production of diploid males. In social species, these pose a double burden by having low fitness and drawing resources normally spent for increasing the work force of a colony. Yet, diploid males are of academic interest as they can elucidate effects of ploidy (normal males are haploid, whereas the female castes, the queens and workers, are diploid) on morphology and life history. Herein we investigated expression levels of ten caste-related genes in the stingless bee Melipona quadrifasciata, comparing newly emerged and 5-day-old diploid males with haploid males, queens and workers. In diploid males, transcript levels for dunce and paramyosin were increased during the first five days of adult... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stingless bee; Real time PCR; Caste; Diploid male; Differential gene expression. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400025 |
| |
|
| |
|
|
| Bezerra,José Maurício Dias; Peruquetti,Rui Carlos; Kerr,Warwick Estevam. |
| Forty six beetles Scotocryptus melitophilus Reitter, 1881 collected in a nest of Melipona quadrifasciata Lepeletier, 1836 were studied. All beetles were put together in a large petri dish with 14 males, 14 virgin queens and 14 workers of M. quadrifasciata, which was not aggressive towards the S. melitophilus and flew with 3 to 10 beetles attached to them. When groups of 20 workers, 20 males and 20 virgin queens were put separately in three petri dishes, the workers become attractive to beetles after they were seven days old, while the males after the 19 days old. Only one virgin queen five days old attracted one beetle. The anatomic parts of the workers bees more attractive to the beetles when smeared to a filter paper were the head (32%), abdomen (29%)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Scotocryptus; Melipona; Adaptive behavior; Phoresy; Caste. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752000000100016 |
| |
|
|
|
