scholarly journals Water availability drives signatures of local adaptation in whitebark pine (Pinus albicaulisEngelm.) across fine spatial scales of the Lake Tahoe Basin, USA

2017 ◽  
Vol 26 (12) ◽  
pp. 3168-3185 ◽  
Author(s):  
Brandon M. Lind ◽  
Christopher J. Friedline ◽  
Jill L. Wegrzyn ◽  
Patricia E. Maloney ◽  
Detlev R. Vogler ◽  
...  
Keyword(s):  
Local Adaptation ◽  
Water Availability ◽  
Spatial Scales ◽  
Lake Tahoe ◽  
Whitebark Pine ◽  
Lake Tahoe Basin ◽  
Tahoe Basin

scholarly journals Water availability drives signatures of local adaptation in whitebark pine (Pinus albicaulis Englm.) across fine spatial scales of the Lake Tahoe Basin, USA

2016 ◽  
Author(s):  
Brandon M. Lind ◽  
Christopher J Friedline ◽  
Jill L. Wegrzyn ◽  
Patricia E. Maloney ◽  
Detlev R. Vogler ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Local Adaptation ◽  
Water Availability ◽  
Spatial Scales ◽  
Lake Tahoe ◽  
Allele Frequencies ◽  
Fine Scale ◽  
Whitebark Pine ◽  
Lake Tahoe Basin ◽  
Tahoe Basin

ABSTRACTPatterns of local adaptation at fine spatial scales are central to understanding how evolution proceeds, and are essential to the effective management of economically and ecologically important forest tree species. Here, we employ single and multilocus analyses of genetic data (n = 116,231 SNPs) to describe signatures of fine-scale adaptation within eight whitebark pine (Pinus albicaulis Engelm.) populations across the local extent of the environmentally heterogeneous Lake Tahoe Basin, USA. We show that despite highly shared genetic variation (FST = 0.0069) there is strong evidence for adaptation to the rain shadow experienced across the eastern Sierra Nevada. Specifically, we build upon evidence from a common garden study and find that allele frequencies of loci associated with four phenotypes (mean = 236 SNPs), 18 environmental variables (mean = 99 SNPs), and those detected through genetic differentiation (n = 110 SNPs) exhibit significantly higher signals of selection (covariance of allele frequencies) than could be expected to arise, given the data. We also provide evidence that this covariance tracks environmental measures related to soil water availability through subtle allele frequency shifts across populations. Our results replicate empirical support for theoretical expectations of local adaptation for populations exhibiting strong gene flow and high selective pressures, and suggest that ongoing adaptation of many P. albicaulis populations within the Lake Tahoe Basin will not be constrained by the lack of genetic variation. Even so, some populations exhibit low levels of heritability for the traits presumed to be related to fitness. These instances could be used to prioritize management to maintain adaptive potential. Overall, we suggest that established practices regarding whitebark pine conservation be maintained, with the additional context of fine-scale adaptation.

Slope and aspect classifications of Lake Tahoe Basin, California and Nevada

1994 ◽  
Author(s):  
L.A. Peltz ◽  
K.D. Cartier ◽  
J. LaRue Smith
Keyword(s):  
Lake Tahoe ◽  
Lake Tahoe Basin ◽  
Tahoe Basin

Selected hydrologic features of Lake Tahoe Basin and surrounding area, California and Nevada, 1998

1999 ◽  
Author(s):  
J. LaRue Smith ◽  
J. Christopher Stone ◽  
Timothy G. Rowe ◽  
James V. Gardner
Keyword(s):  
Lake Tahoe ◽  
Lake Tahoe Basin ◽  
Surrounding Area ◽  
Tahoe Basin

Impact of regional meteorology on ozone levels in the Lake Tahoe Basin

2016 ◽  
Vol 129 (3) ◽  
pp. 297-308
Author(s):  
Sandra Rayne ◽  
Alan Gertler ◽  
Barbara Zielinska ◽  
Andrzej Bytnerowicz ◽  
Joel Burley ◽  
...  
Keyword(s):  
Lake Tahoe ◽  
Lake Tahoe Basin ◽  
Tahoe Basin ◽  
Ozone Levels

Population biology of sugar pine (Pinus lambertiana Dougl.) with reference to historical disturbances in the Lake Tahoe Basin: Implications for restoration

2011 ◽  
Vol 262 (5) ◽  
pp. 770-779 ◽  
Author(s):  
Patricia E. Maloney ◽  
Detlev R. Vogler ◽  
Andrew J. Eckert ◽  
Camille E. Jensen ◽  
David B. Neale
Keyword(s):  
Population Biology ◽  
Lake Tahoe ◽  
Lake Tahoe Basin ◽  
Pinus Lambertiana ◽  
Sugar Pine ◽  
Tahoe Basin
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