文献类型：期刊文献

英文题名：Common gardens reveal genomic susceptibility and vulnerability to climate change in Eucalyptus

作者：Zhu, Xianliang[1,2,3] Zhang, Hairun[1] Lu, Zhaohua[1] Kang, Ming[2] Wang, Baosheng[2] Bush, David[4] Li, Changrong[5,6] Li, Fagen[1]

第一作者：Zhu, Xianliang

通信作者：Li, FG[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Key Lab Natl Forestry & Grassland Adm Trop Forestr, Guangzhou 510520, Peoples R China;[2]Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Peoples R China;[3]Univ Chinese Acad Sci, Beijing 100049, Peoples R China;[4]CSIRO, Australian Tree Seed Ctr, Canberra, ACT 2604, Australia;[5]Minist China, Guangxi Forestry Res Inst, Guangxi Key Lab Super Timber Trees Resource Cultiv, Nanning 530002, Peoples R China;[6]Minist China, Guangxi Forestry Res Inst, Key Lab Cent South Fast Growing Timber Cultivat Fo, Nanning 530002, Peoples R China

年份：2025

卷号：123

期号：1

外文期刊名：PLANT JOURNAL

收录：;EI(收录号：20252818745189);Scopus(收录号：2-s2.0-105010039664);WOS:【SCI-EXPANDED(收录号:WOS:001524258600001)】；

基金：We thank Yingying Li of Guangdong Academy of Forestry for her help in collecting and analyzing the climate data. This work was financially supported by the Fundamental Research Funds of the Chinese Academy of Forestry (CAFYBB2021ZA001) and the National Key R&D Program of China during the 14th Five-year Plan Period (2022YFD2200203--2). We extend our sincere appreciation to the anonymous reviewers for their constructive feedback and valuable suggestions, which have significantly enhanced the quality of this manuscript.

语种：英文

外文关键词：Eucalyptus pellita; local adaptation; genetic offset; GEA; GWAS; mutation load

摘要：Accelerated global climate change and increased species introduction across international scales have raised concerns about the potential for trees to experience maladaptation or lagging adaptation in response to these environmental shifts. However, our knowledge regarding the relationship between the genomic metrics used to predict maladaptation and actual fitness proxies in trees remains limited. Here, we present a population genomic analysis of 295 families from 28 provenances of Eucalyptus pellita, a widely cultivated fast-growing tree species, and conducted two common garden experiments. Genomic susceptibility encompassing individual heterozygosity (H), genomic inbreeding (FROH), and genomic load (inferred from deleterious mutations) exhibited distinct geographic patterns, shedding light on the origin and evolutionary history of E. pellita. The genetic basis of local adaptation was elucidated through genotype-environment associations and genome-wide association studies, including 198 loci associated with climate and 2388 loci regulating different traits. Furthermore, Australian provenances have higher genomic vulnerability under prospective climate alterations than Papua New Guinea and Indonesia provenances. By integrating phenotypic data across two common gardens, the relationship between leaf functional traits and predicted metrics of maladaptation was closer than growth attributes. Notably, pronounced natural selection signals linked to leaf morphogenesis have been identified by comparing two lineages spanning the oceans. This study underscores the immense potential of leveraging genomic susceptibility and genomic vulnerability to decipher the local (mal)adaptation of forest trees.