PMID- 8878687 OWN - NLM STAT- MEDLINE DCOM- 19970128 LR - 20210915 IS - 0016-6731 (Print) IS - 0016-6731 (Linking) VI - 144 IP - 1 DP - 1996 Sep TI - Cloning of the Drosophila melanogaster meiotic recombination gene mei-218: a genetic and molecular analysis of interval 15E. PG - 215-28 AB - The mei-218 gene product is required for both meiotic crossing over and for the production of recombination modules, suggesting that these organelles are required for meiotic exchange. In this study the null phenotype of mei-218 was defined through the analysis of three preexisting and five new alleles. Consistent with previous studies, in homozygous mei-218 mutants meiotic crossing over is reduced to < 10% of normal levels. A molecular analysis of mei-218 was initiated with the isolation and mapping of lethal mutations and genome rearrangements in the region containing mei-218, polytene interval 15E on the X chromosome. This high resolution genetic map was aligned with a physical map constructed from cosmid and P1 clones by genetically mapping restriction fragment length polymorphisms and localizing rearrangement breakpoints. Within a region of 65 kb, we have identified seven transcription units, including mei-218 and the Minute(1)15D gene, which encodes ribosomal protein S5. The mei-218 mutant phenotype has been rescued by germline transformation with both a genomic fragment and a cDNA under the control of the hsp83 promoter. The mei-218 gene is predicted to produce an 1186-amino acid protein that has no significant similarities to any known proteins. FAU - McKim, K S AU - McKim KS AD - Section of Molecular and Cellular Biology, University of California, Davis 95616, USA. FAU - Dahmus, J B AU - Dahmus JB FAU - Hawley, R S AU - Hawley RS LA - eng SI - GENBANK/U35631 SI - GENBANK/U48394 PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Genetics JT - Genetics JID - 0374636 RN - 0 (Cell Cycle Proteins) RN - 0 (DNA, Complementary) RN - 0 (Drosophila Proteins) RN - 0 (mei-218 protein, Drosophila) RN - 9007-49-2 (DNA) SB - IM MH - Alleles MH - Amino Acid Sequence MH - Animals MH - Base Sequence MH - Cell Cycle Proteins/*genetics MH - Chromosome Mapping MH - Cloning, Molecular MH - DNA MH - DNA, Complementary MH - *Drosophila Proteins MH - Drosophila melanogaster/*genetics MH - Female MH - Gene Deletion MH - Genome MH - Humans MH - Male MH - *Meiosis MH - Molecular Sequence Data MH - Multigene Family MH - Phenotype MH - *Recombination, Genetic MH - Sequence Homology, Amino Acid PMC - PMC1207495 EDAT- 1996/09/01 00:00 MHDA- 1996/09/01 00:01 PMCR- 1996/12/01 CRDT- 1996/09/01 00:00 PHST- 1996/09/01 00:00 [pubmed] PHST- 1996/09/01 00:01 [medline] PHST- 1996/09/01 00:00 [entrez] PHST- 1996/12/01 00:00 [pmc-release] AID - 1441215 [pii] AID - 10.1093/genetics/144.1.215 [doi] PST - ppublish SO - Genetics. 1996 Sep;144(1):215-28. doi: 10.1093/genetics/144.1.215.