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单词 autotetraploid
释义

autotetraploidn.adj.

Brit. /ˌɔːtə(ʊ)ˈtɛtrəplɔɪd/, U.S. /ˌɔdoʊˈtɛtrəˌplɔɪd/, /ˌɔdəˈtɛtrəˌplɔɪd/, /ˌɑdoʊˈtɛtrəˌplɔɪd/, /ˌɑdəˈtɛtrəˌplɔɪd/
Origin: Formed within English, by compounding. Etymons: auto- comb. form1, tetraploid adj.
Etymology: < auto- comb. form1 + tetraploid adj. Compare slightly earlier autopolyploid n.
Biology.
A. n.
A tetraploid organism in which the four sets of chromosomes are produced by the duplication of the chromosomes of a single diploid species.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > genetic components > [noun] > chromosome > ploidy > individual
haploid1908
tetraploid1914
haplont1918
hexaploid1921
pentaploid1921
pseudotetraploid1923
octoploid1926
triploid1927
allopolyploid1928
autopolyploid1928
polyploid1928
hyperdiploid1929
allotetraploid1930
autotetraploid1930
hyperploid1930
hypoploid1930
autoploid1932
polysomic1933
mixoploid1939
monoploid1944
amphiploid1945
merozygote1956
merodiploid1964
1930 J. B. S. Haldane in Jrnl. Genetics 22 363 The self-sterile Dahlia variabilis behaves in some respects at least as an autotetraploid.
1949 C. D. Darlington & K. Mather Elements of Genetics vi. 135 The allotetraploid stands at one extreme; the autotetraploid, the product of doubling a homozygous diploid such as a tomato, stands at the other.
1983 E. C. Minkoff Evolutionary Biol. xv. 261/1 Autopolyploids have been produced artificially in many species of domestic plants, usually as autotetraploids.
2000 R. Ennos & E. Sheffield Plant Life i. 14/2 Most autotetraploids are infertile and rely on asexual reproduction to survive. The best known example is probably the cultivated potato Solanum tuberosum.
B. adj.
Of an organism or population: characterized by autotetraploidy.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > genetic components > [adjective] > chromosome > ploidy
haploid1906
amphikaryotic1909
polyenergid1911
polyploid1911
triploid1911
tetraploid1914
hexaploid1920
octoploid1921
pentaploid1921
triplex1921
orthoploid1923
aneuploid1924
heteroploid1926
allopolyploid1927
monoploid1928
haplontic1929
hyperdiploid1929
amphidiploid1930
hyperploid1930
hypoploid1930
polysomic1930
mixoploid1931
allotetraploid1932
autopolyploid1934
autotetraploid1935
autoploid1937
polysomatic1937
monosomatic1939
polyploidizing1941
polyploidogenic1944
amphiploid1945
merodiploid1961
pseudodiploid1963
1935 Bot. Rev. 1 482 Nishimaya suggests doubling of chromosomes after fertilization as the origin of several autotetraploid plants.
1964 Arkansas Farm Res. May–June 8/1 Several autotetraploid lines have been obtained through the use of colchicine.
2002 R. Frankham et al. Introd. Conservation Genetics x. 238 Autotetraploid populations of the grassland daisy have greater polymorphism and allelic diversity than related diploid populations.
This entry has been updated (OED Third Edition, June 2011; most recently modified version published online December 2021).
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n.adj.1930
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