Chromosome ends hold clues to a bird's longevity
Short telomeres tied to higher mortality in Indian Ocean warblers
By Tina Hesman Saey, 17:01 PM November 20, 2012
The long and short of a bird’s life may be recorded in the tips of its chromosomes, a new study suggests.
A study of Seychelles warblers living on a small island in the Indian Ocean suggests that the length of telomeres — bits of DNA that cap chromosome ends — can predict a bird’s chance of dying better than its chronological age can. Warblers with shorter telomeres were less likely to survive another year, especially if the truncation happened rapidly, David S. Richardson, a molecular eco...
Source URL: https://www.sciencenews.org/article/chromosome-ends-hold-clues-birds-longevity