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Functional contribution of embryonic histone H1 variant of Drosophila, dBigH1, to germline development

Principal investigator

Project type
Znanstveno-istraživački projekti
The New International Fellowship Mobility Programme for Experienced Researchers in Croatia
Ministry of Science, Education and Youth of the Republic of Croatia
Start date
Dec 1st 2014
End date
Nov 30th 2017
Total cost
25999 EUR
More information

Histone H1 is known to play a central role in the structural organisation of chromatin. In Drosophila, embryonic histone H1 variant, dBigH1, was characterized. It is present during early-embryo development, when somatic dH1 is not present and there is no zygotic transcription. At cellularisation, BigH1 is replaced by dH1 in somatic cells, but not in the germline pole-cells. The role of dBigH1 in the somatic cells is in preventing premature zygotic transcription, while the role of dBigH1 in germline development is still to be adressed. Knock-down and genetic experiments will be performed to determine the effects of dBigH1 depletion on male and female gametogenesis. Mechanisms, timing and consequences of dBigH1 loading to the paternal genome after fertilization, together with replacement of dBigH1 by dH1, will be adressed, as well as the role of phosphorylation in this process, the identification of kinase/phosphatase and the signaling pathway that regulates this phosphorylation.

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