Hastings Natural History Reservation

06 May, 08 AM - 07 May, 05 AM

The genus Lupinus is a large monophyletic clade within the papillionoid legumes, comprising 200 to 500 species. Over 90% of the species occur in the New World, and the genus is widespread and diverse in California. The Jepson Manual lists 101 taxa, of which 71 are awarded species rank. However, they are notoriously difficult to differentiate, due to large within-taxon phenotypic diversity, overlapping ranges of diagnostic characters, and rampant hybridization among many co-occurring taxa. A better understanding of the evolutionary history of Western North American lupines will best be achieved via population-level analysis with multiple markers. This is likely to be particularly true for closely related taxa such as members of the Micranthi Group, united by Dunn and comprising Lupinus nanus, sensu latto, L. affinis, L. pachylobus, L. spectabilis, and L. bicolor. I will use newly available markers to begin resolving population genetic and phylogenetic relationships among north-central California populations of the Micranthi group. The Micranthi group was the target of early genetic research and numerous later studies that focused on genetics, breeding systems, pollination biology, herbivore relations, phenology, and phenetics. Our lab is examining interactions with rhizobial bacteria (Povich, unpubl. data). However, significant within population variation and variable interfertility between populations have hampered resolution of evolutionary relationships within the group.

Visit #9994 @Hastings Natural History Reservation

Approved

Under Project # 6739 | Research

Population genetics and phylogenetics of Lupinus nanus and relatives

faculty - University of California, Berkeley

Reservation Members(s)

Ellen Simms May 6 - 7, 2006 (2 days)
Ellen Simms May 6 - 7, 2006 (2 days)

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Ranch House 2 May 6 - 7, 2006