Search
Now showing items 1-10 of 30
Evolution of Spur-Length Diversity in Aquilegia Petals Is Achieved Solely Through Cell-Shape Anisotropy
(The Royal Society, 2012)
The role of petal spurs and specialized pollinator interactions has been studied since Darwin. Aquilegia petal spurs exhibit striking size and shape diversity, correlated with specialized pollinators ranging from bees to ...
Conserved Roles for Polycomb Repressive Complex 2 in the Regulation of Lateral Organ Development in Aquilegia X Coerulea 'Origami'
(Springer (Biomed Central Ltd.), 2013)
Background: Epigenetic regulation is necessary for maintaining gene expression patterns in multicellular organisms. The Polycomb Group (PcG) proteins form several complexes with important and deeply conserved epigenetic ...
New Frontiers for Organismal Biology
(American Institute of Biological Sciences, 2013)
Understanding how complex organisms function as integrated units that constantly interact with their environment is a long-standing challenge in biology. To address this challenge, organismal biology reveals general ...
The Global Invertebrate Genomics Alliance (GIGA): Developing Community Resources to Study Diverse Invertebrate Genomes
(Oxford University Press, 2013)
Over 95% of all metazoan (animal) species comprise the “invertebrates,” but very few genomes from these organisms have been sequenced. We have, therefore, formed a “Global Invertebrate Genomics Alliance” (GIGA). Our intent ...
The Meaning of Stromatolites
(Annual Reviews, 2013)
Stromatolites document microbial interactions with sediments and flowing water throughout recorded Earth history and have the potential to illuminate the long-term history of life and environments. Modern stromatolites, ...
Oxygen, Ecology, and the Cambrian Radiation of Animals
(Proceedings of the National Academy of Sciences, 2013)
The Proterozoic-Cambrian transition records the appearance of essentially all animal body plans (phyla), yet to date no single hypothesis adequately explains both the timing of the event and the evident increase in diversity ...
Optimization of Gene Expression by Natural Selection
(National Academy of Sciences, 2009)
It is generally assumed that stabilizing selection promoting a phenotypic optimum acts to shape variation in quantitative traits across individuals and species. Although gene expression represents an intensively studied ...
Sequencing Three Crocodilian Genomes to Illuminate the Evolution of Archosaurs and Amniotes
(BioMed Central, 2012)
The International Crocodilian Genomes Working Group (ICGWG) will sequence and assemble the American alligator (Alligator mississippiensis), saltwater crocodile (Crocodylus porosus) and Indian gharial (Gavialis gangeticus) ...
Meta-Analysis Reveals that Genes Regulated by the Y Chromosome in Drosophila melanogaster Are Preferentially Localized to Repressive Chromatin
(Oxford University Press, 2013)
The Drosophila Y chromosome is a degenerated, heterochromatic chromosome with few functional genes. Despite this, natural variation on the Y chromosome in D. melanogaster has substantial trans-acting effects on the regulation ...
Late Ediacaran Redox Stability and Metazoan Evolution
(Elsevier, 2012)
The Neoproterozoic arrival of animals fundamentally changed Earth's biological and geochemical trajectory. Since the early description of Ediacaran and Cambrian animal fossils, a vigorous debate has emerged about the drivers ...