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We used P -element transposase-mediated “male recombination” between two P elements in trans to create genetic deletions that removed a number of loci, including the gene encoding the neuropeptide crustacean cardioactive peptide (CCAP). Two classes of recombinant chromosomes were produced....
Sterol regulatory element binding protein (SREBP) is a major transcriptional regulator of lipid metabolism. Nuclear Drosophila SREBP (dSREBP) is essential for larval development in Drosophila melanogaster but dispensable in adults. d SREBP − larvae die at second instar owing to loss of...
Maize pericarp color1 ( p1 ) gene, which regulates phlobaphene biosynthesis in kernel pericarp and cob glumes, offers an excellent genetic system to study tissue-specific gene regulation. A multicopy p1 allele, P1-wr (white pericarp/red cob) is epigenetically regulated. Hypomethylation of P1-wr...
This article is concerned with statistical modeling of shotgun resequencing data and the use of such data for population genetic inference. We model data produced by sequencing-by-synthesis technologies such as the Solexa, 454, and polymerase colony (polony) systems, whose use is becoming...
We examined the prevalence of interactions between pairs of short chromosomal regions from one species ( Solanum habrochaites ) co-introgressed into a heterospecific genetic background ( Solanum lycopersicum ). Of 105 double introgression line (DIL) families generated from a complete diallele...
In the majority of sexual organisms, reproduction occurs almost exclusively through the combination of distinct and alternate forms, called sexes or mating types. In some fungi, there can be dozens to hundreds of alternate alleles that determine compatible mating types. Such extensive...
A genomic collection of haploid Saccharomyces cerevisiae deletion strains provides a unique resource for systematic analysis of gene interactions. Double-mutant haploid strains can be constructed by the synthetic genetic array (SGA) method, wherein a query mutation is introduced by mating to...
While many functional elements of the meiotic process are well characterized in model organisms, the genetic basis of most of the natural phenotypic variation observed in meiotic pathways has not been determined. To begin to address this issue, we characterized patterns of polymorphism and...
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