This spring the EEB department had lots of fun searching for frogs and salamanders at Mendon Ponds! Our fearless leader, Anthony, took us on multiple trips and we saw all sorts of creatures. Below are just two of the animals we saw on our trips. Seeing the salamander was particularly amazing because this species only come out once a year to mate in the ephemeral ponds, otherwise they live deep underground. We look forward to going out next year!
This week we’ll be reading about the maintenance of variation through balancing selection:
Bergland AO, Behrman EL, O’Brien KR, Schmidt PS, Petrov DA. 2014. Genomic evidence of rapid and stable adaptive oscillation over seasonal time scales in Drosophila. PLoS Genet. 10(11): e1004775.
Turchin MC, Chiang CWK, Palmer CD, Sankararaman S, Reich D, GIANT Consortium, Hirschhorn JN. 2012. Evidence of widespread selection on standing variation in Europe at height-associated SNPs. Nat. Genet. 44(9): 1015-1021.
Last weekend a few graduate students went over to Mendon ponds to catch a glimpse of local birds. They encountered a large mixed flock of nuthatches, titmice, chickadees and sapsuckers as well as a downy woodpecker. Many birds even came to a hand to feed. We plan to go back next week to repeat the walk and bird feeding. We are also keeping an eye on the ephemeral ponds with the hopes of seeing the salamanders emerge to breed when conditions are right.
Many Rochester Alums met up at this year’s Fly Meetings in Chicago. We sure to like our Drosophila here at Rochester!
From Left to Right: David Loehlin, JP Masly, Nitin Phadnis, Rob Unckless, Amanda Larracuente, Andrea Betancourt, Colin Meiklejohn
Next week we will be reading two papers about GWAS in humans, including one empirical paper that’s been cited over 3,000 times, and a thoughtful short perspective.
Burton, PR, Clayton, DG, Cardon, LR, Craddock, N, Deloukas, P, Duncanson, et al. (2007). Genome-wide association study of 14,000 cases of seven common diseases and 3,000 shared controls. Nature. 447(7145): 661-678.
Goldstein, DB. (2009). Common genetic variation and human traits. New England Journal of Medicine. 360(17): 1696.
Today Binshuang will be presenting some work from his dissertation research. His talk is titled “Characterization of the locus controlling wing dimorphism in male pea aphids”. See you all in Hutch316 at 3pm! Happy hour to follow!