Floral scent is different between sexual phases within individuals in a synchronously dichogamous shrub (Canella winterana) but there is no distinct female or male scent profile across individuals
| Autor: | Rich Moore, Cassie J. Majetic, Patrick Garrett, Paige Schurr, Hanna Makowski, Sophia Johnson |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Sexual identity
Sexual mimicry 010405 organic chemistry ved/biology ved/biology.organism_classification_rank.species Zoology Biology biology.organism_classification 01 natural sciences Biochemistry Attraction Shrub 0104 chemical sciences 010404 medicinal & biomolecular chemistry Inflorescence Pollinator Floral scent Canella Ecology Evolution Behavior and Systematics |
| Zdroj: | Biochemical Systematics and Ecology. 96:104270 |
| ISSN: | 0305-1978 |
| DOI: | 10.1016/j.bse.2021.104270 |
| Popis: | Floral scent is a highly complex and variable floral characteristic that is involved in pollinator attraction. One possible cause for variation in floral scent can be sexual identity of the flower. Here, we examine the floral scent bouquet of a synchronously dichogamous shrub, Canella winterana (L.) Gaertn.We used dynamic headspace extraction and gas chromatography – mass spectroscopy, followed by statistical analysis using non-metric multidimensional scaling, SIMPER, MANOVA, and PERMANOVA to identify and compare the scent profiles of Canella winterana in its female and male phase for multiple individuals as well as multiple inflorescences of a single tree over one cycle of its entire sexual phase transition. The scent profile of C. winterana is composed of 49 volatile organic compounds and dominated by five compounds. We found no evidence for distinct male or female scent profiles; however, there were significant differences in scent emission between different sexes within some individuals. Two compounds explained over half of the variation between sexual stages within individuals. Our exploration of a single tree's sexual phase transition, including neuter phase, found that five compounds dominated the female phase scent bouquet and that female phase was distinct from male and neuter phase. This study offers new insight into the role that variability in floral scent between sexual phases might play in variable pollinator behavioral responses. These results suggest partial support for two distinct hypotheses regarding the differences between the sex phases (1) honest signaling and (2) sexual mimicry. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect