polyhybridn.adj.

Brit.

/ˌpɒlɪˈhʌɪbrɪd/, U.S.

/ˌpɑliˈhaɪbrᵻd/

Origin: Formed within English, by compounding. Etymons: poly- comb. form, hybrid n.

Etymology: < poly- comb. form + hybrid n. With use as noun compare French polyhybride (1904). Compare monohybrid n., monohybrid adj., dihybrid n., and trihybrid adj.

Genetics.

A. n.

A hybrid that is heterozygous at several genetic loci.

ΘΚΠ

the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > cross-breeding or hybridism > hybrid or cross

mongrel1558

hybrid1601

centaur1606

mulatto1664

half-strain1673

cross1761

cross-breed1774

first cross1793

double-cross1810

quadroon1811

intercross1859

outcross1882

reciprocal1901

filial generation1902

monohybrid1902

vicinist1905

first filial (or F₁) generation1909

polyhybrid1910

back-cross1919

second filial (or F₂) generation1938

1910 Science 10 June 895/1 Those who hold that fluctuations have no effect at all on heredity, suggest that the sugar beet and kindred cases may represent complex polyhybrids continually breaking up.

1926 Bot. Gaz. 81 135 Many varieties can sometimes be collected within a few yards. It is probable..that in such spots polyhybrids arise.

1965 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) 334 The genetic consequences of crossing both dihybrids and polyhybrids are directly dependent upon the manner in which the chromosomes are distributed at the reductional division.

1999 Isis 90 263 There are also polyhybrids, whose elementary characters are connected so strongly that they cannot be separated.

B. adj.

Of, relating to, or characteristic of a polyhybrid, or a cross resulting in a polyhybrid.

ΘΚΠ

the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [adjective] > cross-breeding or hybridization

bigenerous1610

hybridan1623

mongrel1633

hybridous1691

mule1728

hybrid1775

cross-bred1856

hybridizablea1864

paragenesic1864

hybridized1872

cross1886

monohybrid1903

outbred1903

intergeneric1921

polyhybrid1922

reticulate1938

trihybrid1941

inter-strain1950

1908 Amer. Naturalist 42 499 The prediction that F₂ would consist of the five forms..in the well-known tri-polyhybrid ratio, 27:9:9:3:16.]

1922 Hereditas 3 233 The segregation is evidently polyhybrid showing transgression in one direction.

1943 Science 5 Feb. 138/1 He also for the first time investigated polyhybrid populations and recognized their essentially different method of attaining equilibrium.

1996 Evolution 50 1257/2 Polyhybrid unisexual organisms among parthenogens..are evidence of unexpected reproductive relationships.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polyhybrid
释义	polyhybridn.adj. Brit. /ˌpɒlɪˈhʌɪbrɪd/, U.S. /ˌpɑliˈhaɪbrᵻd/ Origin: Formed within English, by compounding. Etymons: poly- comb. form, hybrid n. Etymology: < poly- comb. form + hybrid n. With use as noun compare French polyhybride (1904). Compare monohybrid n., monohybrid adj., dihybrid n., and trihybrid adj. Genetics. A. n. A hybrid that is heterozygous at several genetic loci. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [noun] > cross-breeding or hybridism > hybrid or cross mongrel1558 hybrid1601 centaur1606 mulatto1664 half-strain1673 cross1761 cross-breed1774 first cross1793 double-cross1810 quadroon1811 intercross1859 outcross1882 reciprocal1901 filial generation1902 monohybrid1902 vicinist1905 first filial (or F₁) generation1909 polyhybrid1910 back-cross1919 second filial (or F₂) generation1938 1910 Science 10 June 895/1 Those who hold that fluctuations have no effect at all on heredity, suggest that the sugar beet and kindred cases may represent complex polyhybrids continually breaking up. 1926 Bot. Gaz. 81 135 Many varieties can sometimes be collected within a few yards. It is probable..that in such spots polyhybrids arise. 1965 P. Bell & D. Coombe tr. Strasburger's Textbk. Bot. (new ed.) 334 The genetic consequences of crossing both dihybrids and polyhybrids are directly dependent upon the manner in which the chromosomes are distributed at the reductional division. 1999 Isis 90 263 There are also polyhybrids, whose elementary characters are connected so strongly that they cannot be separated. B. adj. Of, relating to, or characteristic of a polyhybrid, or a cross resulting in a polyhybrid. ΘΚΠ the world > life > biology > biological processes > genetic activity > heredity or hereditary descent > [adjective] > cross-breeding or hybridization bigenerous1610 hybridan1623 mongrel1633 hybridous1691 mule1728 hybrid1775 cross-bred1856 hybridizablea1864 paragenesic1864 hybridized1872 cross1886 monohybrid1903 outbred1903 intergeneric1921 polyhybrid1922 reticulate1938 trihybrid1941 inter-strain1950 1908 Amer. Naturalist 42 499 The prediction that F₂ would consist of the five forms..in the well-known tri-polyhybrid ratio, 27:9:9:3:16.] 1922 Hereditas 3 233 The segregation is evidently polyhybrid showing transgression in one direction. 1943 Science 5 Feb. 138/1 He also for the first time investigated polyhybrid populations and recognized their essentially different method of attaining equilibrium. 1996 Evolution 50 1257/2 Polyhybrid unisexual organisms among parthenogens..are evidence of unexpected reproductive relationships. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.adj.1910
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