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单词 allotetraploidy
释义

allotetraploidyn.

Brit. /ˌaləʊˈtɛtrəplɔɪdi/, /ˌaləˈtɛtrəplɔɪdi/, U.S. /ˌæloʊˈtɛtrəˌplɔɪdi/, /ˌæləˈtɛtrəˌplɔɪdi/
Origin: Formed within English, by compounding. Etymons: allo- comb. form, tetraploidy n. at tetraploid adj. Derivatives
Etymology: < allo- comb. form + tetraploidy n. at tetraploid adj. Derivatives, after allotetraploid n.
Biology.
The state or condition of being allotetraploid; the act or process of a hybrid becoming a new species by becoming an allotetraploid.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > ploidy
triploidy1916
tetraploidy1918
haploidy1921
hexaploidy1922
polyploidy1922
octoploidy1924
aneuploidy1925
heteroploidy1926
allopolyploidy1927
autopolyploidy1928
hyperdiploidy1929
polysomy1929
hyperploidy1930
hypoploidy1930
mixoploidy1931
syndiploidy1932
allotetraploidy1933
autotetraploidy1935
monoploidy1937
polysomaty1937
ploidy1940
pseudodiploidy1965
polysomatism1967
1933 Proc. Linn. Soc. 145 120 Chromosome doubling in the hybrid (allotetraploidy).
1942 J. S. Huxley Evolution iii. 87 Allotetraploidy is almost confined to plants, because of the favourable conditions provided by their vegetative growth for the rare chromosome-doubling.
1989 Jrnl. Heredity 80 26/2 Proposed origins were as follows:..allotetraploidy for P. rufum; and autotetraploidy for P. quadrifarium.
2000 D. A. Levin Origin, Expansion, & Demise Plant Species vii. 139 Lande and Schemske (1985) predicted that auto- and allotetraploidy should substantially reduce inbreeding depression caused by recessive lethal and sublethal alleles in outcrossing populations.
This entry has been updated (OED Third Edition, September 2012; most recently modified version published online December 2021).
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n.1933
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