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Eyes absent in the cockroach panoistic ovaries regulates proliferation and differentiation through ecdysone signalling
Faculty
Agriculture
Year:
2020
Type of Publication:
ZU Hosted
Pages:
Authors:
Nashwa Ahmed Ali Mohamed Elshaer
Staff Zu Site
Abstract In Staff Site
Journal:
Insect Biochemistry and Molecular Biology elsevier
Volume:
Keywords :
Eyes absent , , cockroach panoistic ovaries regulates
Abstract:
Eyes absent (Eya), is a protein structurally conserved from hydrozoans to humans, for which two basic roles have been reported: it can act as a transcription cofactor and as a protein tyrosine phosphatase. Eya was discovered in the fly Drosophila melanogaster in relation to its function in eye development, and the same function was later reported in other insects. Eya is also involved in insect oogenesis, although studies in this sense are limited to D. melanogaster, which has meroistic ovaries, and where eya mutations abolish gonad formation. In the present work we studied the function of eya in the panoistic ovary of the cockroach Blattella germanica. We show that eya is essential for correct development of panoistic ovaries. In B. germanica, eya acts at different level and in a distinct way in the germarium and the vitellarium. In the germarium, eya contributes to maintain the correct number of somatic and germinal cells by regulating the expression of steroidogenic genes in the ovary. In the vitellarium, eya facilitates follicle cells proliferation and contributes to regulate the cell program, in the context of basal ovarian follicle maturation. Thus, eya-depleted females of B. germanica arrest the growth and maturation of basal ovarian follicles and become sterile.
Author Related Publications
Nashwa Ahmed Ali Mohamed Elshaer, "Crosstalk of EGFR signalling with Notch and Hippo pathways to regulate cell specification, migration and proliferation in cockroach panoistic ovaries", © 2015 Société Française des Microscopies and Société de Biologie Cellulaire de France. Published by John Wiley & Sons Ltd, 2015
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Nashwa Ahmed Ali Mohamed Elshaer, "The Notch pathway regulates both the proliferation and differentiation of follicular cells in the panoistic ovary of Blattella germanica", royal society, 2016
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Nashwa Ahmed Ali Mohamed Elshaer, "Biological silicon nanoparticles maximize the efficiency of nematicides against biotic stress induced by Meloidogyne incognita in eggplant", Elsevier, 2021
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Nashwa Ahmed Ali Mohamed Elshaer, "Effects of rhizobacteria and seed oils as eco-friendly agents against Meloidogyne incognita infested pepper plants under greenhouse and repeated applications field conditions", Elsevier, 2022
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Nashwa Ahmed Ali Mohamed Elshaer, "Biosafety evaluation for two products from Beauveria bassiana on adult female albino rats by acute oral test", Elsevier, 2022
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Department Related Publications
Elsayed Abdel Malek Elmadany Elsheikh, "Improved insecticidal efficacy of a recombinant baculovirus expressing mutated JH esterase from Manduca sexta", Biological Control 58 (2011) 354–361, 2011
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Elsayed Abdel Malek Elmadany Elsheikh, "Determination and analysis of the genome sequence of Spodoptera littoralis multiple nucleopolyhedrovirus", Virus Research 171 (2013) 194– 208, 2012
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Alsayed Mahmoud Mostafa Ibrhiem, "تأثير طرق مختلفة من الحرث والتسميد على الكثافة العددية لتعداد الحلم العنكبوتى Tetranychus urticae Koch في حقول الفول البلدي Effect of different soil tillage and fertilization regimes on population density of Tetranychus urticae Koch in fab", Egypt. J. Appl . Sci., 2009
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