Contents

20 May 2011
Vol 332, Issue 6032

About The Cover

Cover image expansion

COVER Phase contrast photomicrograph of a Schizosaccharomyces octosporus ascus, a sac-like cell that typically contains eight spores (each ~2 micrometers across). S. octosporus and other fission yeasts are important models of eukaryote biology and have evolved a single-celled lifestyle independently from their budding yeast cousins. On page 930, Rhind et al. present a comparative genomic analysis of fission yeasts that sheds light on their genome structure and gene regulation. Image: Dr. George Wilder/Visuals Unlimited, Inc.