@article {Cook051276, author = {D.C. Cook and S. Zdraljevic and R.E. Tanny and B. Seo and D.D. Riccardi and L.M. Noble and M.V. Rockman and M.J. Alkema and C. Braendle and J.E. Kammenga and J. Wang and L. Kruglyak and M.A. F{\'e}lix and J. Lee and E.C. Andersen}, title = {The genetic basis of natural variation in C. elegans telomere length}, elocation-id = {051276}, year = {2016}, doi = {10.1101/051276}, publisher = {Cold Spring Harbor Laboratory}, abstract = {Telomeres are involved in the maintenance of chromosomes and the prevention of genome instability. Despite this central importance, significant variation in telomere length has been observed in a variety of organisms. The genetic determinants of telomere-length variation and their effects on organismal fitness are largely unexplored. Here, we describe natural variation in telomere length across the Caenorhabditis elegans species. We identify a large-effect variant that contributes to differences in telomere length. The variant alters the conserved oligosaccharide/oligonucleotide-binding fold of POT-2, a homolog of a human telomere-capping shelterin complex subunit. Mutations within this domain likely reduce the ability of POT-2 to bind telomeric DNA, thereby increasing telomere length. We find that telomere-length variation does not correlate with offspring production or longevity in C. elegans wild isolates, suggesting that naturally long telomeres play a limited role in modifying fitness phenotypes in C. elegans.}, URL = {https://www.biorxiv.org/content/early/2016/05/02/051276}, eprint = {https://www.biorxiv.org/content/early/2016/05/02/051276.full.pdf}, journal = {bioRxiv} }