nondisjunction of newly replicated sister chromatidse0
Verbatim
e0
“The initial event responsible for the occurrence of breakages and lagging chromosomes was characterized by the nondisjunction of newly replicated sister chromatids, which was observed to occur preferentially at the knob level”
“Meiotic drive may be a major force of genome evolution, allowing revolutionary changes in genome structure and diversity over short evolutionary periods.”
“In maize, neocentromeres are induced by a gene or genes on Abnormal chromosome 10 (Ab10) which causes heterochromatic knobs to move poleward at meiotic anaphase”
e6
“These data suggest that microtubule depolymerization is not required for neocentromere motility”
“the combined effects of meiotic drive and genetic linkage may have reshaped genetic diversity throughout the maize genome in response to the presence of Ab10.”
“In maize, neocentromeres are induced by a gene or genes on Abnormal chromosome 10 (Ab10) which causes heterochromatic knobs to move poleward at meiotic anaphase”
e7
“We argue that neocentromeres are mobilized on microtubules by the activity of minus end-directed motor proteins”
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Zea mays