threshold effect hypothesis
- threshold effect hypothesis
Признаки пороговые, п. п. гипотеза — предполагается, что определенные полигенные признаки (см. Признаки количественные) проявляются только при аддитивном (суммарном) действии соответствующих аллелей и при достижении пороговой величины их экспрессии. Гипотеза часто используется для объяснения таких явлений, когда признак, имеющий полигенную природу, проявляется как качественный, т. е. по принципу «есть-нет», напр. чувствительность или устойчивость к определенным болезням.
Англо-русский толковый словарь генетических терминов. — М.: Изд-во ВНИРО.
Арефьев В.А., Лисовенко Л.А., науч. ред. Л.И.Патрушев.
1995.
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