NDLI: Past selection explains differentiation in flowering phenology of nearby populations of a common alpine plant

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Alpine Botany : Volume 125, Issue 1, April 2015

Alpine Botany : Volume 124

Alpine Botany : Volume 123

Alpine Botany : Volume 122

Alpine Botany : Volume 121

Alpine Botany : Volume 120

Alpine Botany : Volume 119

Alpine Botany : Volume 118

Alpine Botany : Volume 117

Alpine Botany : Volume 116

Alpine Botany : Volume 115

Past selection explains differentiation in flowering phenology of nearby populations of a common alpine plant

Content Provider	Springer Nature Link
Author	Kesselring, Halil Armbruster, Georg F. J. Hamann, Elena Stöcklin, Jürg
Copyright Year	2015
Abstract	The timing of and relative investment in reproductive events are crucial fitness determinants for alpine plants, which have limited opportunities for reproduction in the cold and short growing seasons at high elevations. We use the alpine Anthyllis vulneraria to study whether flowering phenology and reproductive allocation have been under diversifying selection, and to assess genetic diversity and plastic responses to drought in these traits. Open-pollinated maternal families from three populations in each of two regions from the Swiss Alps with contrasting precipitation were grown in low and high soil moisture in a common garden. We measured onset, peak, and end of flowering, as well as vegetative and reproductive aboveground biomass. Population differentiation for each character (Q ST) was compared to differentiation at neutral microsatellite loci (F ST) to test for past selection. We found population differentiation in onset and peak of flowering which results from natural selection according to Q ST–F ST. End of flowering and biomass were not significantly differentiated among populations. Reduced soil moisture had no consistent effect on mean onset of flowering, and advanced peak and end of flowering by less than 1 week. Reproductive biomass was strongly decreased by lowered soil moisture. No genetic variation within or among populations was found for plasticity in any trait measured. The results suggest past heterogeneous selection on onset and peak of flowering in alpine Anthyllis vulneraria and potentially indicate local adaptation to differences in snowmelt date over distances <5 km. Limited variation in plastic responses to reduced soil moisture suggests that soil moisture might not vary between populations.
Starting Page	113
Ending Page	124
Page Count	12
File Format	PDF
ISSN	16642201
Journal	Alpine Botany
Volume Number	125
Issue Number	2
e-ISSN	1664221X
Language	English
Publisher	Springer Basel
Publisher Date	2015-09-14
Publisher Place	Basel
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Local adaptation Q ST–F ST comparison Phenotypic plasticity Drought Plant Sciences Plant Ecology Ecology Life Sciences Forestry
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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