Gonochorism


Gonochorism

In biology, gonochorism ("Greek" offspring + disperse) or unisexualism describes sexually reproducing species in which there are at least two distinct sexes. The sex of an individual is most often genetically determined and does not usually change throughout its lifetime. (Clownfish and alligators are good examples of exceptions. Male Clown fish can change their sex during their lifetime and the sex of an alligator can be determined by the incubation temperature of its egg.) Good examples of this type of pollination are hollies, and kiwifruit. In these plants the male plant which supplies the pollen is referred to as the pollenizer. The vast majority of mammals, for example, are gonochorists.

Gonochorism stands in contrast to other reproductive strategies such as hermaphroditism.

ee also

*monoclinous
*diclinous
*plant sexuality


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Look at other dictionaries:

  • Gonochorism — Gon o*cho rism, n. [Gr. ? offspring + ? to separate.] (a) Separation of the sexes in different individuals; opposed to hermaphroditism. (b) In ontogony, differentiation of male and female individuals from embryos having the same rudimentary… …   The Collaborative International Dictionary of English

  • gonochorism — gonochorism. См. раздельнополость. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • gonochorism — those species with sexes separate, the male and female reproductive organs being in different individuals, as opposed to hermaphroditic, gynogenetic, and hybridogenetic …   Dictionary of ichthyology

  • gonochorism — n. [Gr. gone, that which produces seed; chorismos, separation] The possession of functional gonads of one sex only (male or female); dioecious. gonochoristic adj …   Dictionary of invertebrate zoology

  • gonochorism — noun The situation in which the individuals of a species are of one of two distinct sexes, and retain that sexuality throughout their lives …   Wiktionary

  • gonochorism — gon·och·o·rism (gon okґə riz əm) [gono 1 + Gr. chōrizein to separate] differentiation of the gonads with normal development of the reproductive organs appropriate to the sex; cf. hermaphroditism …   Medical dictionary

  • gonochorism — gon·o·cho·rism …   English syllables

  • gonochorism — …   Useful english dictionary

  • gonochorism, gonochorismus — Normal gonadal differentiation appropriate to the sex. [G. gone, seed, sex, + chorizo, to separate] …   Medical dictionary

  • раздельнополость — gonochorism гонохоризм, раздельнополость. Cистема строгой однополости организмов, т.е. каждая особь либо самец, либо самка (в ботанике Г. = двудомность). (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л …   Молекулярная биология и генетика. Толковый словарь.


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