Any process that stops, prevents or reduces the frequency, rate or extent of the addition of an acetyl group to a histone protein.

A complex containing both protein and micro-RNA (miRNA) molecules. miRNAs are approximately 22 nucleotide noncoding RNAs derived from endogenous genes; they are processed from the stem of a longer hairpin like structure termed a pre-miRNA.

Any process that modulates the frequency, rate or extent of the chemical reactions involving phosphorus or compounds containing phosphorus.

The stage-specific break down of the larval midgut during Drosophila metamorphosis, to allow replacement of larval structures by tissues and structures that form the adult fly.

The joining of the sister chromatids of a replicated chromosome along the entire length of the chromosome that occurs during meiosis.

The process whose specific outcome is the progression of the embryonic heart tube over time, from its formation to the mature structure.

The process whereby a relatively unspecialized cell acquires the specialized structural and/or functional features of a cell that will form part of the cardiac organ of an individual.

aortic cell fate commitment (sensu Insecta)

The commitment of cardioblast cells to an aortic cell fate and their capacity to differentiate into aortic cells. As in, but not restricted to, the true insects (Insecta, ncbi_taxonomy_id:50557).

heart proper cell fate commitment (sensu Insecta)

The commitment of cardioblast cells to a heart proper cell fate and their capacity to differentiate into heart cells. As in, but not restricted to, the true insects (Insecta, ncbi_taxonomy_id:50557).

embryonic heart tube anterior/posterior pattern formation

The establishment, maintenance and elaboration of cell differentiation that results in the anterior/posterior subdivision of the embryonic heart tube. In Drosophila this results in subdivision of the dorsal vessel into to the posterior heart proper and the anterior aorta.

regulation of nuclear mRNA splicing via U2-type spliceosome