Arid
DOI10.1093/biolinnean/blw051
Evidence for adaptation and acclimation in a widespread eucalypt of semi-arid Australia
Steane, Dorothy A.1,2,3,4; Mclean, Elizabeth H.4,5; Potts, Brad M.1,2; Prober, Suzanne M.4; Stock, William D.6; Stylianou, Vanessa M.6; Vaillancourt, Rene E.1,2; Byrne, Margaret5
通讯作者Steane, Dorothy A.
来源期刊BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN0024-4066
EISSN1095-8312
出版年2017
卷号121期号:3页码:484-500
英文摘要

As climates change, restoration programmes need to maximize the capacity of regenerating ecosystems to adapt to new environments, particularly when planting long-lived trees. By using a combined phenotypic and genomic approach, we assessed evidence of adaptation capacity in Eucalyptus loxophleba ssp. lissophloia, a mallee eucalypt important for restoration and oil production in Western Australia. Assessment of leaf traits in nine wild populations across a rainfall gradient showed that two traits were correlated with long-term moisture availability. Populations in more arid environments had lower specific leaf area and lower stomatal conductance, consistent with a stable plastic or adaptive response. Other leaf size and shape traits were correlated with short-term climate variables, suggesting a dynamic plastic response.


Genome-wide scans with 4851 DArTseq markers and outlier analysis detected 50 markers showing signals of disruptive selection, consistent with local adaptation. Sixteen markers showed allele frequencies correlated with aridity; three were also associated with differences in stomatal conductance. Multivariate analysis and marker-environment associations signalled secondary directions of adaptation associated with maximum temperatures and soil phosphorus. We suggest that adaptation and acclimation are both likely determinants of functional phenotype in E. loxophleba, and argue that aridity is a critical driver of adaptation in this widespread species.


英文关键词climate resilience DArTseq markers genome-wide scan leaf traits local adaptation population genomics widespread species
类型Article
语种英语
国家Australia
收录类别SCI-E
WOS记录号WOS:000406921300002
WOS关键词CARBON-ISOTOPE DISCRIMINATION ; PHENOTYPIC PLASTICITY ; FUNCTIONAL TRAITS ; LOCAL ADAPTATION ; CLIMATE-CHANGE ; EVOLUTIONARY RESPONSES ; POPULUS-TRICHOCARPA ; LEAF MORPHOLOGY ; WATER-USE ; SELECTION
WOS类目Evolutionary Biology
WOS研究方向Evolutionary Biology
来源机构Commonwealth Scientific and Industrial Research Organisation
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/197849
作者单位1.Univ Tasmania, Sch Biol Sci, Hobart, Tas 7001, Australia;
2.Univ Tasmania, ARC Ctr Forest Value, Hobart, Tas 7001, Australia;
3.Univ Sunshine Coast, Fac Sci Hlth Educ & Engn, Sippy Downs, Qld 4556, Australia;
4.CSIRO Land & Water, Private Bag 5, Wembley, WA 6913, Australia;
5.Bentley Delivery Ctr, Dept Pk & Wildlife, Sci & Conservat Div, Locked Bag 104, Bentley, WA 6983, Australia;
6.Edith Cowan Univ, Sch Sci, Ctr Ecosyst Management, Joondalup, WA 6027, Australia
推荐引用方式
GB/T 7714
Steane, Dorothy A.,Mclean, Elizabeth H.,Potts, Brad M.,et al. Evidence for adaptation and acclimation in a widespread eucalypt of semi-arid Australia[J]. Commonwealth Scientific and Industrial Research Organisation,2017,121(3):484-500.
APA Steane, Dorothy A..,Mclean, Elizabeth H..,Potts, Brad M..,Prober, Suzanne M..,Stock, William D..,...&Byrne, Margaret.(2017).Evidence for adaptation and acclimation in a widespread eucalypt of semi-arid Australia.BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY,121(3),484-500.
MLA Steane, Dorothy A.,et al."Evidence for adaptation and acclimation in a widespread eucalypt of semi-arid Australia".BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY 121.3(2017):484-500.
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