Arid
DOI10.1002/eap.1447
Landscape genetic approaches to guide native plant restoration in the Mojave Desert
Shryock, Daniel F.1; Havrilla, Caroline A.2; DeFalco, Lesley A.1; Esque, Todd C.1; Custer, Nathan A.1; Wood, Troy E.3
通讯作者Shryock, Daniel F.
来源期刊ECOLOGICAL APPLICATIONS
ISSN1051-0761
EISSN1939-5582
出版年2017
卷号27期号:2页码:429-445
英文摘要

Restoring dryland ecosystems is a global challenge due to synergistic drivers of disturbance coupled with unpredictable environmental conditions. Dryland plant species have evolved complex life-history strategies to cope with fluctuating resources and climatic extremes. Although rarely quantified, local adaptation is likely widespread among these species and potentially influences restoration outcomes. The common practice of reintroducing propagules to restore dryland ecosystems, often across large spatial scales, compels evaluation of adaptive divergence within these species. Such evaluations are critical to understanding the consequences of large-scale manipulation of gene flow and to predicting success of restoration efforts. However, genetic information for species of interest can be difficult and expensive to obtain through traditional common garden experiments. Recent advances in landscape genetics offer marker-based approaches for identifying environmental drivers of adaptive genetic variability in non-model species, but tools are still needed to link these approaches with practical aspects of ecological restoration. Here, we combine spatially explicit landscape genetics models with flexible visualization tools to demonstrate how cost-effective evaluations of adaptive genetic divergence can facilitate implementation of different seed sourcing strategies in ecological restoration. We apply these methods to Amplified Fragment Length Polymorphism (AFLP) markers genotyped in two Mojave Desert shrub species of high restoration importance: the long-lived, wind-pollinated gymnosperm Ephedra nevadensis, and the short-lived, insect-pollinated angiosperm Sphaeralcea ambigua. Mean annual temperature was identified as an important driver of adaptive genetic divergence for both species. Ephedra showed stronger adaptive divergence with respect to precipitation variability, while temperature variability and precipitation averages explained a larger fraction of adaptive divergence in Sphaeralcea. We describe multivariate statistical approaches for interpolating spatial patterns of adaptive divergence while accounting for potential bias due to neutral genetic structure. Through a spatial bootstrapping procedure, we also visualize patterns in the magnitude of model uncertainty. Finally, we introduce an interactive, distance-based mapping approach that explicitly links marker-based models of adaptive divergence with local or admixture seed sourcing strategies, promoting effective native plant restoration.


英文关键词drylands ecological restoration genome scan landscape genetics local adaptation Mojave Desert multivariate analysis seed provenance strategy seed transfer zones spatial genetics
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000395634300010
WOS关键词CARBON-ISOTOPE DISCRIMINATION ; LOCAL ADAPTATION ; ECOLOGICAL RESTORATION ; ENCELIA-FARINOSA ; CLIMATE-CHANGE ; GENOME-SCAN ; CONCEPTUAL ISSUES ; TREE POPULATIONS ; NORTH-AMERICA ; TRADE-OFFS
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
来源机构United States Geological Survey
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/198408
作者单位1.US Geol Survey, Western Ecol Res Ctr, 160 North Stephanie St, Henderson, NV 89074 USA;
2.Univ Colorado, Boulder, CO 80309 USA;
3.US Geol Survey, Colorado Plateau Res Stn, Southwest Biol Sci Ctr, POB 5614, Flagstaff, AZ 86011 USA
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Shryock, Daniel F.,Havrilla, Caroline A.,DeFalco, Lesley A.,et al. Landscape genetic approaches to guide native plant restoration in the Mojave Desert[J]. United States Geological Survey,2017,27(2):429-445.
APA Shryock, Daniel F.,Havrilla, Caroline A.,DeFalco, Lesley A.,Esque, Todd C.,Custer, Nathan A.,&Wood, Troy E..(2017).Landscape genetic approaches to guide native plant restoration in the Mojave Desert.ECOLOGICAL APPLICATIONS,27(2),429-445.
MLA Shryock, Daniel F.,et al."Landscape genetic approaches to guide native plant restoration in the Mojave Desert".ECOLOGICAL APPLICATIONS 27.2(2017):429-445.
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