000			02028nam a2200289Ia 4500
003			MX-MdCICY
005			20250625124701.0
040			_cCICY
090			_aB-7467
245	1	0	_aGender dimorphism and altitudinal variation of secondary compounds in leaves of the gynodioecious shrub Daphne laureola
490	0		_vJournal of Chemical Ecology, 31(1), p.139-150, 2005
520	3		_aAbstract-In this article, we analyzed the concentration of coumarins in leaves of female and hermaphrodite individuals of the gynodioecious shrub Daphne laureola, along an elevational gradient in southern Spain. Combining HPLC and NMR techniques, we identified three different glycosides of 7-methoxycoumarin in leaves of this species. Total coumarin concentration averaged between 60 and 120 mg/g dry weight for mature summer leaves of D. laureola growing at six different populations. As predicted by optimal theory, females tended to have a higher concentration of coumarins than hermaphrodites, thus upholding the idea that male reproductive function is costly for hermaphrodites. Furthermore, concentrations in females but not hermaphrodites were positively correlated with increasing population altitude, and the magnitude of gender divergence in coumarin concentration varied among populations, suggesting that the cost of the male function may be context dependent. To our knowledge, this is the first evidence of gender differences in chemical defenses of a gynodioecious species in the field.
650	1	4	_aCOUMARINS
650	1	4	_aDAPHNE LAUREOLA
650	1	4	_aELEVATION
650	1	4	_aGYNODIOECY
650	1	4	_aPLANT-ANIMAL
650	1	4	_aINTERACTIONS
650	1	4	_aPLANT DEFENSE
700	1	2	_aAlonso, C.
700	1	2	_aPerez, R.
700	1	2	_aNieto, P.M.
700	1	2	_aDelgado, J.
856	4	0	_uhttps://drive.google.com/file/d/1u7xzphoZ3SJGhcEaWgb58L2zivKXfTwI/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942			_2Loc _cREF1
008			250602s9999 xx |||||s2 |||| ||und|d
999			_c41796 _d41796