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Origin and Fate of Aneusomaty in Sunflower ( Helianthus annuus L.)
Author(s) -
Uremonini R.,
Cavallini A.
Publication year - 1986
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1986.tb01308.x
Subject(s) - helianthus annuus , biology , sunflower , meiosis , mitosis , helianthus , botany , embryo , shoot , horticulture , genetics , gene
Chromosomal variability in Helianthus annuus was studied during the ontogenetic cycle of the plant. Aneusomaty originates during embryo development, progressively decreases in the course of plant growth and disappears at pre‐meiosis. A number of aberrant mitoses with lagging chromosomes were found in all embryonic stages examined; by contrast, mitoses never showed aberrations in the shoot apices of plants.