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syndiploidy
syndiploidy n.
Brit. 
/sɪnˈdɪplɔɪdi/
, /sɪnˈdɪplɔɪdi/U.S. /sɪnˈdɪˌplɔɪdi/
[compare German syndiploide adjective (E. Strasburger 1907, in Jahrb. f. Wissensch. Bot. 44 489)] Genetics doubling of the gametic chromosome number by fusion of daughter cell nuclei./sɪnˈdɪˌplɔɪdi/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
1932 C. D. Darlington Rec. Adv. in Cytol. iii. 63 The chief occasion of polyploidy in plants and in many animals is the reunion, after separation, of nuclei in the male germinal cells at the last divisions before meiosis. This is known as syndiploidy.
1980 Cytologia 45 378 The evolutionary significance of syndiploidy lies in the production of diploid gametes, which ultimately produce polyploid.
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as lemmas