Acknowledgments
We thank the Forest Service’s Pacific Southwest Regional Genetic
Resources Program for allowing us to sample needles and collect seeds
from their seed orchard, and XSEDE and UC Merced computer cluster for
computational resources and support. We thank David Neale, Stephen Hart,
Jason Sexton, Jeffrey Lauder, Dean Wu, and Rainbow DeSilva for their
comments on the manuscript and the experimental design. Also, thank
Vanessa Centeno and Shirley Calderon at UC Merced for greenhouse plant
care. The sequencing was carried out at the DNA Technologies and
Expression Analysis Cores at the UC Davis Genome Center, supported by
NIH Shared Instrumentation Grant 1S10OD010786-01. For SNP
identification, we used the MERCED computer cluster at UC Merced (funded
by NSF Award ACI-1429783) and the Extreme Science and Engineering
Discovery Environment (XSEDE, supported by NSF Award ACI-1548562). The
funding organizations paid the experimental fees and computing resources
for this research. Still, they did not play any role in the design of
the study nor the collection analysis and interpretation of data, or the
writing of the manuscript.