protandrous

(redirected from protandry)
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Related to protandry: heterostyly, protogyny

pro·tan·drous

 (prō-tăn′drəs)
adj.
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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

protandrous

(prəʊˈtændrəs) or

proterandrous

adj
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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Despite this, however, no evidence was found to indicate protandry, with oyster size (DVM and APM) not significantly related to gender.
prismatica during the year could be an indication that the species has a functional protandry behavior.
If the androecium matures before the gynoecium and produces pollens in a hermaphrodite flower, this called protandry (Percival, 1965).
Bunching onion is a typical outcrossing crop due to protandry [1].
2010: Sex-related variation in migration phenology in relation to sexual dimorphism: a test of competing hypotheses for the evolution of protandry. J.
Protandry has been proposed for Sialidae (e.g., Tierno de Figueroa and Palomino-Morales, 2002), Chanliodinae (Hayashi, 1999) but not for Corydalinae.
The yellow passion fruit has floral characteristics such as hercogamy (stylet located above the anthers), the protandry (maturing pollen grains before the stigma is receptive) and a self-incompatibility system (Angel-Coca et al., 2011; Dai & Galloway, Which makes cross-pollination indispensable for fruit and seed production (Yockteng et al., 2011).
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.
Although most decapod crustaceans (shrimps, lobsters, crayfishes, crabs) are gonochoristic, numerous caridean shrimp species are sequential hermaphrodites, first developing as males and then changing sex to females (protandry) (Bauer, 2000; Chiba, 2007).