Last week (8 March), we discussed the very interesting genome paper on killifish “Insights into sex chromosome evolution and aging from the genome of a short-lived fish”. These fish are famous for their very rapid adult stage turn-over rate and short life-span, but is turns out that they very interesting sex chromosomes with a very small non-recombining part. This suggests that the sex chromosome is very young, and thus promising for research about sex chromosome evolution. Then this week (15 March), the article ”Stress exposure in early post-natal life reduces telomere length: an experimental demonstration in a long-lived seabird” triggered a nice discussion about telomeres of course but also experimental design.
The amazing Turquoise Killifish and its assembled genome