Cytophotometric evaluation of corpora allata DNA during the development of larvae of workers and queens (Apis mellifera l.; Hymenoptera, Apidae)

publication date: Feb 18, 2011
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Journal of Apicultural Research
Vol. 29 (3) pp. 121-125
Date
September 1990
Article Title

Cytophotometric evaluation of corpora allata DNA during the development of larvae of workers and queens (Apis mellifera l.; Hymenoptera, Apidae)

Author(s)

E. N. Yaginuma, R. L. M. Silva De Moraes And C. Cruz-Landim

Abstract

Cytophotometric observation of corpora allata from workers and queens of A. mellifera showed significant variations in DNA conterit from the 2nd to the 4th instar of both castes, but the differences between castes are present only in the 2nd instar. The corpora allata are characterized by the presence of diploid, as well as polyploid cells, distributed in classes that are well established since the earliest developmental stages. However the frequency of cell nuclei in the higher classes of ploidy increases with development. This occurrence is responsible for the increase of the average DNA content in older larvae.

Keywords

Cytophotometric observation, corpora allata, Apis Mellifera, queens, workers

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