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Definition of Term

(English) The consistent production of only female offspring where the diploid or triploid eggs are activated by sperm from the male of a bisexual species but the paternal chromosomes are not incorporated in the embryo. The offspring are thus maternal replicates in morphology and in chromosome number, e.g. in the Poeciliidae Poecilia (Mollienisia) formosa and Poeciliopsis monacha-lucida and in the Cyprinidae Carassius auratus and Phoxinus neogaeus. See also hybridogenesis. (See also: diploid, triploid, hybridogenesis)

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