dtctex-1, the Drosophila melanogaster homolog of a putative murine t-complex distorter encoding a dynein light chain, is required for production of functional sperm
- 1 May 2001
- journal article
- Published by Springer Nature in Molecular Genetics and Genomics
- Vol. 265 (3) , 436-444
- https://doi.org/10.1007/s004380000431
Abstract
Tctex-1 is a light chain of the cytoplasmic and flagellar dyneins and a candidate for one of the distorter products that cause transmission ratio distortion in mice. We report the identification, characterization, and a preliminary mutational analysis of the function of the Drosophila melanogaster dtctex-1 gene, the putative ortholog of the mammalian tctex-1 gene family. Four P-transposon insertions which disrupt the 5′ untranslated region of dtctex-1 are viable in homozygous form but cause male sterility due to the production of non-motile sperm. In males homozygous for dtctex-1 mutant alleles the dtctex-1 transcript is undetectable, while in homozygous females transcripts of lower molecular weight are present. By secondary mobilization of P-element insertions several revertants and new mutant alleles carrying deletions in the 5′ UTR region of the gene were produced and characterized by PCR and by Northern analysis.Keywords
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