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Insights into the dynamics of hind leg development in honey bee (Apis mellifera L.) queen and worker larvae - A morphology/differential gene expression analysis Genet. Mol. Biol.
Santos,Carolina Gonçalves; Hartfelder,Klaus.
Phenotypic plasticity is a hallmark of the caste systems of social insects, expressed in their life history and morphological traits. These are best studied in bees. In their co-evolution with angiosperm plants, the females of corbiculate bees have acquired a specialized structure on their hind legs for collecting pollen. In the highly eusocial bees (Apini and Meliponini), this structure is however only present in workers and absent in queens. By means of histological sections and cell proliferation analysis we followed the developmental dynamics of the hind legs of queens and workers in the fourth and fifth larval instars. In parallel, we generated subtractive cDNA libraries for hind leg discs of queen and worker larvae by means of a Representational...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Social insect; Caste development; Imaginal disc; Insect metamorphosis; Transcript analysis.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572015000300263
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Epigenetic modifications and their relation to caste and sex determination and adult division of labor in the stingless bee Melipona scutellaris Genet. Mol. Biol.
Cardoso-Júnior,Carlos A.M.; Fujimura,Patrícia Tieme; Santos-Júnior,Célio Dias; Borges,Naiara Araújo; Ueira-Vieira,Carlos; Hartfelder,Klaus; Goulart,Luiz Ricardo; Bonetti,Ana Maria.
Abstract Stingless bees of the genus Melipona, have long been considered an enigmatic case among social insects for their mode of caste determination, where in addition to larval food type and quantity, the genotype also has a saying, as proposed over 50 years ago by Warwick E. Kerr. Several attempts have since tried to test his Mendelian two-loci/two-alleles segregation hypothesis, but only recently a single gene crucial for sex determination in bees was evidenced to be sex-specifically spliced and also caste-specifically expressed in a Melipona species. Since alternative splicing is frequently associated with epigenetic marks, and the epigenetic status plays a major role in setting the caste phenotype in the honey bee, we investigated here epigenetic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: DNA methylation; Histone modification; Caste development; Social bees; Genetic caste determination.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100061
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