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Abstract Detail

Systematics Section/ASPT

Jolles, Diana [1], Kriebel, Ricardo [2], Buchmann, Stephen [3].

Angiosperms get buzzed many times, independently.

Buzz pollination is a fairly well known syndrome arising convergently in angiosperms numerous times, but there has been little discussion about some basic aspects of the syndrome. For example, the presence of poricid anthers is a telltale sign of vibrational dehiscence, but how often has effective buzz pollination by insects been observed? If plants with poricid anthers  belong to extremely diverse families, this would corroborate the widely held notion that plant-pollinator specializations spawn rapid diversification of angiosperms lineages. Is this the pattern we find in angiosperms? Using phylogenetic information derived from a variety of studies, we present new information on the prevalence and distribution of the buzz pollination syndrome in the angiosperm phylogeny. Additionally, we make a closer examination of variation in anther morphology in a few focus families, some for which the buzz pollination syndrome is relatively common and some for which poricid, non-buzzed anthers occur. Statistical analyses indicate that the syndrome has evolved more than 60 times in a variety of families, but the diverse morphology of anthers across these groups suggests that poricid anthers adapted for buzz pollination arise from several different progenitor anther morphologies.

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1 - Rancho Santa Ana Botanic Garden, Claremont Graduate University, 1500 North College Avenue, Claremont, CA, 91711, USA
2 - University of Wisconsin-Madison, Department of Botany, 430 Lincoln Drive, Madison, WI, 53706, USA
3 - University of Arizona, Department of Ecology and Evolutionary Biology, BioSciences West room 310, 1041 East Lowell Street, Tucson, AZ, 85721, USA

poricid anther dehiscence
Character evolution.

Presentation Type: Oral Paper:Papers for Sections
Session: 30
Location: Payette/Boise Centre
Date: Tuesday, July 29th, 2014
Time: 1:45 PM
Number: 30002
Abstract ID:862
Candidate for Awards:George R. Cooley Award

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