DOI: 10.5061/dryad.3c769
title: Data from: Remarkable life history polymorphism may be evolving under divergent selection in the silverleaf sunflower

description: Substantial intraspecific variation in life history is rare and
 potentially a signal of incipient ecological speciation, if variation is
 driven by geographically heterogenous natural selection. We present the
 first report of extensive life history polymorphism in Helianthus
 argophyllus, the silverleaf sunflower, and examine evidence for its
 evolution by divergent selection. In 18 populations sampled from across
 the species range and grown in a common garden, most quantitative traits
 covaried such that individuals could be assigned to two distinct life
 history syndromes: tall and late flowering with small initial flowerheads,
 or short and early flowering with larger initial flowerheads. Helianthus
 argophyllus exhibits regional genetic structure, but this population
 structure does not closely correspond with patterns of phenotypic
 variation. The early-flowering syndrome is primarily observed in
 populations from coastal barrier islands, while populations from the
 nearby mainland coast, although geographically and genetically close, are
 primarily late flowering. Additionally, several traits are more
 differentiated among regions than expected based on neutral genetic
 divergence (QST &gt; FST), including the first principal component
 score corresponding with life history syndrome. This discordance between
 patterns of phenotypic and genetic variation suggests that divergent
 selection is driving genetic differences in life history across the
 species range. If so, the silverleaf sunflower may be in early stages of
 ecological speciation.
description: 2010 Common Garden
 PhenotypesThis is an excel
 spreadsheet that with two tabs: one with the data and one with an
 explanation of the column headers in the data sheet. This file includes
 all data for all individuals that were grown and measured in my 2010 field
 experiment at the University of British Columbia farm in Vancouver, BC,
 Canada. Please note that these individuals were filtered in various ways
 for different analyses (e.g. only those planted in the replicated family
 design, or excluding individuals with putative hybrid ancestry). Please
 contact me if you need further details or would like a filtered
 dataset.common_gardenFINAL.xlsxSNP genotype dataThis is an excel spreadsheet that with two tabs: one with the data and one with an explanation of the column headers in the data sheet. This file includes all data for all individuals that were genotyped using the Sequenom iPLEX Gold technology for this study, including individuals from species other than Helianthus argophyllus which were not included in the manuscript. Please note that these individuals were filtered in various ways for different analyses (e.g. only those planted in the replicated family design, or excluding individuals with putative hybrid ancestry). Please contact me if you need further details or would like a filtered dataset.all_sequenom_data_forDryad.xlsxSequenom SNP marker metadataThis is an excel spreadsheet that with two tabs: one with the data and one with an explanation of the column headers in the data sheet. This file includes data for all markers that were included in two panels of 40 by the Sequenom iPLEX Gold technology for this study. Please note that these markers were filtered for reliability and genotype call rate in the final analyses. Please contact me if you need further details or would like a filtered dataset.SNP_bylocus_data_forDryad.xlsx