論文

査読有り
2018年2月

Keeping an eye on coloration: ecological correlates of the evolution of pitcher traits in the genus Nepenthes (Caryophyllales)

BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
  • Kadeem J. Gilbert
  • ,
  • Joel H. Nitta
  • ,
  • Gerard Talavera
  • ,
  • Naomi E. Pierce

123
2
開始ページ
321
終了ページ
337
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1093/biolinnean/blx142
出版者・発行元
OXFORD UNIV PRESS

Nepenthes is a genus of carnivorous pitcher plants with high intra- and interspecific morphological diversity. Many species produce dimorphic pitchers, and the relative production rate of the two morphs varies interspecifically. Despite their probable ecological importance to the plants, little is known about the selective context under which various pitcher traits have evolved. This is especially true of colour-related traits, which have not been examined in a phylogenetic context. Using field observations of one polymorphic species (N. gracilis) and comparative phylogenetic analysis of 85 species across the genus, we investigate correlations between colour polymorphism and ecological factors including altitude, light environment and herbivory. In N. gracilis, colour does not correlate with amount of prey captured, but red pitchers experience less herbivory. Throughout the genus, colour polymorphism with redder lower pitchers appears to be evolutionarily favoured. We found a lack of phylogenetic signal for most traits, either suggesting that most traits are labile or reflecting the uncertainty regarding the underlying tree topology. This study highlights ecological correlates of the vast phenotypic diversity of this group of tropical plants. We point to a need for future study examining herbivores of Nepenthes and experimental investigations on colour polymorphism.

Web of Science ® 被引用回数 : 10

リンク情報
DOI
https://doi.org/10.1093/biolinnean/blx142
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000423313000006&DestApp=WOS_CPL
ID情報
  • DOI : 10.1093/biolinnean/blx142
  • ISSN : 0024-4066
  • eISSN : 1095-8312
  • Web of Science ID : WOS:000423313000006

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