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Related to protandry: heterostyly, protogyny


1. Of or relating to an organism, especially a plant, in which the male reproductive organs mature before the female reproductive organs.
2. Of or relating to the earlier arrival of males than of females at a breeding site: protandrous migration.

pro·tan′dry (-drē) n.


(prəʊˈtændrəs) or


1. (Botany) (of hermaphrodite or monoecious plants) maturing the anthers before the stigma
2. (Zoology) (of hermaphrodite animals) producing male gametes before female gametes. Compare protogynous
proˈtandry n
References in periodicals archive ?
2010: Sex-related variation in migration phenology in relation to sexual dimorphism: a test of competing hypotheses for the evolution of protandry.
Ejaculate production schedule and the degree of protandry in lishflies (Megaloptera: Corydalidae).
Protandry is the emergence of males before females, and it was observed for C.
In many moths and butterflies, as well as in other insects, males mature sexually before females, which is a type of protandry (Wiklund & Fagerstrom 1977; Harari et al.
altaquerensis both exhibit the floral mechanism of dynamic herkogamy associated with protandry, which is known to occur in other species of Columnea (Morley 1974; Amaya-Marquez ined.
Protandry and mate assessment in the warbiter Decticus verrucivorus (Orthoptera: Tettigoniidae).
The contributions of larval growth and pupal duration to protandry in the Black Swallowtail Butterfly, Papilio polyxenes.
Protandry in knobbed whelk may be opportunistic, and not every individual may be capable of it.
Protandry and wind pollination makes maize suitable for maximum cross-pollination.
Sexual development in fish is characterized by many factors, including genetic and environmental, male and female heterogametes, single gene and polygenic systems, protandry, protogyny, social influence on sexual determination and many combinations and variations between and with these systems.
Despite this diversity, Robbrecht (1988) pointed out the presence of three reproductive strategies common in Rubiaceae-distyly, morphologically characterized by the presence of two inter-compatible floral morphs, which is generally observed in species of Rubioideae (Barrett, 1992); stylar pollen presentation involving protandry and pollen presentation in the style which is generally recorded in Ixoroideae (De Block and Igerscheim, 2001; Nilsson et al.
Protogyny and protandry are the underlying mechanisms favouring allogamy in monoecious palms.