PMID: 7010676Jan 1, 1980Paper

Development and cellular differentiation of an insect telotrophic ovary (Rhodnius prolixus)

Tissue & Cell
D A Lutz, E Huebner

Abstract

Differentiation events accompanying the larval-adult ovarian transformation in Rhodnius prolixus can be divided into three phases: proliferative phase (unfed to 3 days post-feed or DPF), early differentiation phase (9-15 DPF) and late differentiation phase (16 DPF to moult at 21 DPF). Ovarioles remain morphologically larval until feeding initiates development. The unfed ovariole contains germ cells surrounding a central trophic core region with the 'germarial lumen' occupying the basal region of the tropharium immediately above the pre-follicular tissue. Mitosis of germ cells during the proliferative phase results in a progressive increase in tropharial size with no differentiation of tissues. Regional specialization within the ovariole marks the beginning of the early differentiation phase. A zone of oocytes is established at the base of the tropharium with nuclei containing synaptonemal complexes and condensing chromosomes. Nurse cell differentiation is characterized by nucleolar elaboration and nucleo-cytoplasmic transport, the cytoplasm becoming rich in ribosomes. Autoradiographic results suggest that functional nurse cell-oocyte divergence occurs concurrently with morphological divergence. Pre-follicular tissue is divided ...Continue Reading

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Citations

Oct 6, 2007·Insect Biochemistry and Molecular Biology·Denise M D BoutsHatisaburo Masuda
Dec 20, 2007·Arthropod Structure & Development·Jan-Michael KuglerJürgen Büning
Apr 23, 2017·Genesis : the Journal of Genetics and Development·Rodrigo Nunes-da-FonsecaHelena Marcolla Araujo
Oct 12, 2018·PLoS Neglected Tropical Diseases·Tarcisio BritoAttilio Pane
Mar 12, 2021·Development Genes and Evolution·Agustina PascualRolando Rivera Pomar
Jul 6, 2004·The Journal of Experimental Biology·C S Bjornsson, E Huebner
Aug 19, 2021·PLoS Pathogens·Tarcísio Fontenele de BritoAttilio Pane

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