Divergence in cryptic leaf colour provides local camouflage in an alpine plant
Niu, Yang1; Chen, Zhe1,2; Stevens, Martin3; Sun, Hang1
2017-10-11
发表期刊PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
ISSN0962-8452
卷号284页码:20171654
摘要

The efficacy of camouflage through background matching is highly environment-dependent, often resulting in intraspecific colour divergence in animals to optimize crypsis in different visual environments. This phenomenon is largely unexplored in plants, although several lines of evidence suggest they do use crypsis to avoid damage by herbivores. Using Corydalis hemidicentra, an alpine plant with cryptic leaf colour, we quantified background matching between leaves and surrounding rocks in five populations based on an approximate model of their butterfly enemy's colour perception. We also investigated the pigment basis of leaf colour variation and the association between feeding risk and camouflage efficacy. We show that plants exhibit remarkable colour divergence between populations, consistent with differences in rock appearances. Leaf colour varies because of a different quantitative combination of two basic pigments-chlorophyll and anthocyanin-plus different air spaces. As expected, leaf colours are better matched against their native backgrounds than against foreign ones in the eyes of the butterfly. Furthermore, improved crypsis tends to be associated with a higher level of feeding risk. These results suggest that divergent cryptic leaf colour may have evolved to optimize local camouflage in various visual environments, extending our understanding of colour evolution and intraspecific phenotype diversity in plants.

关键词Adaptive Divergence Camouflage Corydalis Crypsis Local Adaptation Plant Defence
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/54870
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位1.Chinese Acad Sci, Key Lab Plant Div & Biogeog East Asia, Kunming Inst Bot, 132 Lanhei Rd, Kunming 650201, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Univ Exeter, Ctr Ecol & Conservat, Coll Life & Environm Sci, Penryn Campus, Penryn TR10 9FE, England
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Niu, Yang,Chen, Zhe,Stevens, Martin,et al. Divergence in cryptic leaf colour provides local camouflage in an alpine plant[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2017,284(1864):20171654.
APA Niu, Yang,Chen, Zhe,Stevens, Martin,&Sun, Hang.(2017).Divergence in cryptic leaf colour provides local camouflage in an alpine plant.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,284(1864),20171654.
MLA Niu, Yang,et al."Divergence in cryptic leaf colour provides local camouflage in an alpine plant".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 284.1864(2017):20171654.
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