A learning event can be dissociated into 3 components: acquisition, storage, and recall. When the laboratory wild-type strain of Caenorhabditis elegans (N2 strain) is exposed to benzaldehyde in the absence of food, the worms display a reduction of their attractive response to this volatile odorant. This results from the association between benzaldehyde and a nutrient-deficient environment. Another wild-type isolate, the CB4856 strain, fails to display this decreased response to benzaldehyde after exposure to benzaldehyde in the absence of food. However, like the N2 strain, when tested to isoamyl alcohol after benzaldehyde conditioning, the CB4856 strain displays a decreased isoamyl alcohol response. Therefore, the CB4856 strain does not have an acquisition deficit, but it suffers from a recall deficit specific to benzaldehyde.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1037/0735-7044.118.6.1206 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comprehensive detection of structural variation and transposable element differences between wild type laboratory lineages of .
bioRxiv
November 2023
Institute of Molecular Biology, Department of Biology, University of Oregon, 1229 Franklin Blvd Eugene, OR 97403, USA.
Genomic structural variations (SVs) and transposable elements (TEs) can be significant contributors to genome evolution, altered gene expression, and risk of genetic diseases. Recent advancements in long-read sequencing have greatly improved the quality of genome assemblies and enhanced the detection of sequence variants at the scale of hundreds or thousands of bases. Comparisons between two diverged wild isolates of , the Bristol and Hawaiian strains, have been widely utilized in the analysis of small genetic variations.
View Article and Find Full Text PDFLinkage mapping reveals loci that underlie differences in Caenorhabditis elegans growth.
G3 (Bethesda)
September 2022
Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA.
Growth rate and body size are complex traits that contribute to the fitness of organisms. The identification of loci that underlie differences in these traits provides insights into the genetic contributions to development. Leveraging Caenorhabditis elegans as a tractable metazoan model for quantitative genetics, we can identify genomic regions that underlie differences in growth.
View Article and Find Full Text PDFLong-read sequencing infers a mechanism for copy number variation of template for alternative lengthening of telomeres in a wild strain.
MicroPubl Biol
May 2022
Research Institute of Basic Sciences, Seoul National University, Seoul, Korea.
Template for alternative lengthening of telomeres 1 (TALT1) is a specific sequence used to protect chromosomal ends from telomere damage first identified in the CB4856 strain of . Here we assembled the genome of DL226, a wild strain with one more copy of TALT1-like sequences in its genome compared to those of CB4856, using long-read DNA sequencing. We found that a five-copy array of short telomeric repeats and TALT1s present in CB4856 were changed to a six-copy array due to the duplication of the third copy; there was an additional damage-repair trace in the new short telomeric repeat near the newly replicated TALT1.
View Article and Find Full Text PDFIntraspecific gene birth revealed by presence-absence variant genes in .
NAR Genom Bioinform
June 2022
Research Institute of Basic Sciences, Seoul National University, Seoul 08826, Korea.
Genes embed their evolutionary history in the form of various alleles. Presence-absence variants (PAVs) are extreme cases of such alleles, where a gene present in one haplotype does not exist in another. Because PAVs may result from either birth or death of a gene, PAV genes and their alternative alleles, if available, can represent a basis for rapid intraspecific gene evolution.
View Article and Find Full Text PDFGenomic architecture of 5S rDNA cluster and its variations within and between species.
BMC Genomics
March 2022
Department of Biology, Hong Kong Baptist University, Hong Kong SAR, China.
Background: Ribosomal DNAs (rDNAs) are arranged in purely tandem repeats, preventing them from being reliably assembled onto chromosomes during generation of genome assembly. The uncertainty of rDNA genomic structure presents a significant barrier for studying their function and evolution.
Results: Here we generate ultra-long Oxford Nanopore Technologies (ONT) and short NGS reads to delineate the architecture and variation of the 5S rDNA cluster in the different strains of C.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!