DOI: 10.5061/dryad.t1778
title: Data from: The edaphic environment mediates flowering-time differentiation between adjacent populations of Leptosiphon parviflorus

description: Flowering time is an important life history trait in plants that often
 affects fitness. The optimal time to flower may be influenced by
 trade-offs between flowering time and growth-related traits and is thus
 likely to differ among habitats. Because flowering-time differences
 between populations can also reduce gene flow, understanding the factors
 that contribute to variation in flowering time among closely adjacent
 populations that experience gene flow is of particular interest. Plant
 adaptation to different edaphic environments provides some of the best
 examples of adaptive divergence at small spatial scales, and often
 coincides with flowering-time shifts. The current study addresses the
 causes of flowering-time differences in two populations of Leptosiphon
 parviflorus that are locally adapted to adjacent serpentine and sandstone
 soils despite moderate levels of gene flow and close geographic proximity.
 Field reciprocal-transplant studies and watering manipulations in the
 greenhouse demonstrate the contribution of both the genotype and the
 environment to observed flowering-time differences. The plasticity of
 flowering time in response to soil type appears to be driven by
 differences in soil moisture. In addition, selection on flowering time was
 measured in both soil types across 4 years of study using a set of F5
 advanced-generation hybrids and found to differ between the habitats.
 Therefore, both selection and plasticity contribute to flowering-time
 differences between these populations and thus have likely played an
 important role in the initiation and/or maintenance of adaptive divergence
 in this system.
description: Soil Volumetric Water
 Content Jan 27-June 18 2015This file includes the
 raw voltage readings as well as the calculated volumetric water content
 readings from four different sensors for each soil type (serpentine and
 sandstone) at Jasper Ridge Biological Preserve. Two replicates were placed
 at two different locations on each soil type (see README file for a
 diagram for the approximate locations of each sensor).VWC_2015.csvGreenhouse flowering time data for serpentine and sandstone populationsData collected at the Michigan State University greenhouse on serpentine "Serp" or sandstone "Sand" soil in two treatments- "Dry" vs. "Control". 'Pop' indicates the population source, 'Initial Flat' refers to the flat/position of the individual before being assigned to a treatment. 'treatment_flat' refers to the flat replicate (nested within treatment- either 1 or 2). 'Plant' is a unique number for each plant on each flat, 'Date_Planted' is the day that each individual was transplanted, 'Flower_Day' is the first day that each plant was observed to flower (Day 0=first day of transplant/Feb 11), and the first plant to flower was on Day 27 (corresponding to March 10).Parents_gh.csvFlowering time of the serpentine and sandstone populations in the fieldThis data was collected on the parental populations (serpentine and sandstone) on their native soil types at Jasper Ridge Biological Preserve during years 2012-2015. Here, 'Rep' refers to the replicate plot (nested within year and soil type). Years 2012-2013 only had one replicate plot on each soil type. The 'Flat_transplant' is the day each individual was transplanted to the flat filled with field soil, and the 'Field_transplant' is the day each individual was transplanted from the flat to the field. Field.Row and Field.Column are the Row/Column positions for each plant in the field plots, 'Edge' plants were directly on the outer edge of each plot, while 'Inner' plants include everything else. The date of first flower is listed in addition to the day of first flower. Day #1 is the day the first plant flowered in that year.Parents_field.csvFlowering time and fitness (survival, number of flowers, number of fruits) for the F5 advanced-generation hybrids on each soil type (serpentine or sandstone) during 2012-2015This data was collected at Jasper Ridge Biological Preserve during years 2012-2015. Here, 'Rep' refers to the replicate plot (nested within year and soil type). Years 2012-2013 only had one replicate plot on each soil type. The 'Flat_transplant' is the day each individual was transplanted to the flat filled with field soil, and the 'Field_transplant' is the day each individual was transplanted from the flat to the field. Field.Row and Field.Column are the Row/Column positions for each plant in the field plots, 'Edge' plants were directly on the outer edge of each plot, while 'Inner' plants include everything else. The date of first flower is listed in addition to the day of first flower. Day #1 is the day the first plant flowered in that year. 'Surv_flr' is whether or not the plant survived to flower, and 'NumFlowers' and 'NumFruits' is the number of flowers or fruits each plant produced.F5_selection.csv