scholarly journals Comparison of petunia and calibrachoa in carotenoid pigmentation of corollas

2019 ◽  
Vol 69 (1) ◽  
pp. 117-126 ◽  
Author(s):  
Sanae Kishimoto ◽  
Chihiro Oda-Yamamizo ◽  
Akemi Ohmiya
Keyword(s):  
Carotenoid Pigmentation

Regulation of Carotenoid Pigmentation in Corollas of Petunia

2018 ◽  
Vol 36 (4) ◽  
pp. 632-642 ◽  
Author(s):  
Sanae Kishimoto ◽  
Chihiro Oda-Yamamizo ◽  
Akemi Ohmiya
Keyword(s):  
Carotenoid Pigmentation

scholarly journals Behaviour, physiology and carotenoid pigmentation in Arctic charr Salvelinus alpinus

2013 ◽  
Vol 84 (1) ◽  
pp. 1-9 ◽  
Author(s):  
T. Backström ◽  
E. Brännäs ◽  
J. Nilsson ◽  
C. Magnhagen
Keyword(s):  
Salvelinus Alpinus ◽  
Arctic Charr ◽  
Carotenoid Pigmentation

scholarly journals An R2R3‐ MYB transcription factor regulates carotenoid pigmentation in Mimulus lewisii flowers

2015 ◽  
Vol 209 (3) ◽  
pp. 1049-1057 ◽  
Author(s):  
Janelle M. Sagawa ◽  
Lauren E. Stanley ◽  
Amy M. LaFountain ◽  
Harry A. Frank ◽  
Chang Liu ◽  
...  
Keyword(s):  
Transcription Factor ◽  
Myb Transcription Factor ◽  
R2r3 Myb ◽  
Carotenoid Pigmentation

scholarly journals Ultraviolet reflectance by the cere of raptors

2006 ◽  
Vol 2 (2) ◽  
pp. 173-176 ◽  
Author(s):  
François Mougeot ◽  
Beatriz E Arroyo
Keyword(s):  
Mate Choice ◽  
Body Mass ◽  
Male Body ◽  
Sexual Signal ◽  
Future Studies ◽  
Circus Pygargus ◽  
Ultraviolet Reflectance ◽  
Uv Reflectance ◽  
Sexual Signalling ◽  
Carotenoid Pigmentation

Ultraviolet (UV) signals have been shown to play key roles in social and sexual signalling in birds. Using a spectrophotometer, we analysed the colour of the cere (skin above the beak) of a diurnal raptor, the Montagu's harrier ( Circus pygargus ), and show that it reflects in the UV part of the spectrum. The cere is a well-known sexual signal in raptors, with carotenoid based pigmentation being indicative of quality. We thus hypothesized that UV reflectance also signals quality. Accordingly, we found that in our sample of wild males, the location of the UV peak was related to the orangeness of cere and correlated with male body mass and condition (mass corrected for size). Also, males with brighter UV were mated to females that laid earlier, as expected if UV reflectance relates to a male's quality and attractiveness. Future studies should investigate the relationships between UV reflectance and carotenoid pigmentation of cere, and test how UV reflectance influences mate choice.

Carotenoid-based signals in behavioural ecology: a review

Behaviour ◽  
2011 ◽  
Vol 148 (2) ◽  
pp. 131-189 ◽  
Author(s):  
◽  
Keyword(s):  
Social Interactions ◽  
Future Research ◽  
Antioxidant Systems ◽  
Complex Nature ◽  
Behavioural Ecology ◽  
Evolutionary Time ◽  
Carotenoid Metabolism ◽  
Trade Offs ◽  
The Many ◽  
Carotenoid Pigmentation

AbstractCarotenoids are among the most prevalent pigments used in animal signals and are also important for a range of physiological functions. These concomitant roles have made carotenoidbased signals a popular topic in behavioural ecology while also causing confusion and controversy. After a thorough background, we review the many pitfalls, caveats and seemingly contradictory conclusions that can result from not fully appreciating the complex nature of carotenoid function. Current controversies may be resolved through a more careful regard of this complexity, and of the immense taxonomic variability of carotenoid metabolism. Studies investigating the physiological trade-offs between ornamental and physiological uses of carotenoids have yielded inconsistent results. However, in many studies, homeostatic regulation of immune and antioxidant systems may have obscured the effects of carotenoid supplementation. We highlight how carefully designed experiments can overcome such complications. There is also a need to investigate factors other than physiological trade-offs (such as predation risk and social interactions) as these, too, may shape the expression of carotenoidbased signals. Moreover, the processes limiting signal expression individuals are likely different from those operating over evolutionary time-scales. Future research should give greater attention to carotenoid pigmentation outside the area of sexual selection, and to taxa other than fishes and birds.

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