作者: Inês S. Modesto , Célia Miguel , Francisco Pina-Martins , Maria Glushkova , Manuela Veloso
DOI: 10.1007/S11295-014-0786-1
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摘要: Cork oak (Quercus suber L.) is an evergreen tree species endemic to the western Mediterranean Basin with a major economical, social and ecological relevance, associated cork extraction exploitation. In last years, stands have been facing significant decline, which may be aggravated by climate changes that are predicted occur within distribution range during this century. Under scenario, assessment of adaptive genetic variation essential understand how cope these threats delineate strategies for management its resources. study, six candidate genes possibly environmental adaptation were analysed in populations from entire range. Signatures natural selection investigated using population statistics association tests under alternative scenarios structure. Signals balancing detected putative non-expressor pathogenesis-related gene 1 (NPR1), involved plant defence response against pathogens, auxin factor 16 (ARF16), implicated root development, RAN3, also developmental processes, glutamine synthetase nodule isozyme (GS), nitrogen fixation. Furthermore, ARF16, class I heat shock protein (sHSP) GS, associations found between SNP allele haplotype frequencies several spatial climatic variables, suggesting role on local adaptation. first steps taken into gathering information conditions.