Abdu et al., 2006, Development 133(8): 1477--1484

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Abdu et al., 2006, Development 133(8): 1477--1484
FlyBase Identifier FBrf0190267
FlyBase URL http://flybase.org/reports/FBrf0190267.html
Publication Type paper
Publication Year 2006
PubMed ID 16540510
PubMed URL http://www.ncbi.nlm.nih.gov/pubmed/16540510

Title

spn-F encodes a novel protein that affects oocyte patterning and bristle morphology in Drosophila.

Abstract

The anteroposterior and dorsoventral axes of the Drosophila embryo are established during oogenesis through the activities of Gurken (Grk), a Tgfalpha-like protein, and the Epidermal growth factor receptor (Egfr). spn-F mutant females produce ventralized eggs similar to the phenotype produced by mutations in the grk-Egfr pathway. We found that the ventralization of the eggshell in spn-F mutants is due to defects in the localization and translation of grk mRNA during mid-oogenesis. Analysis of the microtubule network revealed defects in the organization of the microtubules around the oocyte nucleus. In addition, spn-F mutants have defective bristles. We cloned spn-F and found that it encodes a novel coiled-coil protein that localizes to the minus end of microtubules in the oocyte, and this localization requires the microtubule network and a Dynein heavy chain gene. We also show that Spn-F interacts directly with the Dynein light chain Ddlc-1. Our results show that we have identified a novel protein that affects oocyte axis determination and the organization of microtubules during Drosophila oogenesis.

Genes from Reference

Gene(s) Dmel\cnn, Dmel\αTub67C
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