CHLOROPLAST DNA INTROGRESSION IN SOUTHERN CALIFORNIA SUNFLOWERS

Genetic architecture of species differences in annual sunflowers: implications for adaptive trait introgression.

Genetic architecture may profoundly influence the ability of adaptive traits to spread between species via introgressive hybridization. Here, we examine the genomic location of quantitative trait loci (QTL) associated with pollen sterility and morphological traits distinguishing two annual sunflowers, Helianthus annuus and H. debilis ssp. cucumerifolius. These species are of particular interest...

Discussing epigenetics in Southern California

With the goal of discussing how epigenetic control and chromatin remodeling contribute to the various processes that lead to cellular plasticity and disease, this symposium marks the collaboration between the Institut National de la Santé et de la Recherche Médicale (INSERM) in France and the University of California, Irvine (UCI). Organized by Paolo Sassone-Corsi (UCI) and held at the Beckman ...

Sunflowers in Lattices

A Sunflower is a subset S of a lattice, with the property that the meet of any two elements in S coincides with the meet of all of S. The Sunflower Lemma of Erdös and Rado [2] asserts that a set of size at least 1 + k!(t − 1)k of elements of rank k in a Boolean Lattice contains a sunflower of size t. We develop counterparts of the Sunflower Lemma for distributive lattices, graphic matroids, and...

CHLOROPLAST DNA EVOLUTION IN Atriplex

Analysis of chloroplast DNA varia­ tion in species of Lycopersicon (Solan­ aceae) has demonstrated the utility of the techniques for assessing phyloge­ netic relationships among species (Pal­ mer and Zamir, 1982). A similar but more extensive survey has been initi­ ated in the genus Atriplex (Chenopo­ diaceae) using the same techniques. Atriplex is a genus of over 400 de­ scribed species and ha...

Southern California Tectonic Deformation Modeling