Meiotic multivalent orientation and cell developmental delay.
作者信息
Sybenga J, Hsiao C, de Vries J M
机构信息
Department of Genetics, Agricultural University Wageningen, The Netherlands.
出版信息
Prog Clin Biol Res. 1989;318:325-34.
PMID:2696974
Abstract
In the heterozygote for the combination of an interchange (662W;3R/6R) and a Robertsonian split (3R) of rye, one type of adjacent orientation leads to trisomy in the progeny. Pollen mother cells with adjacent orientation of the translocation quinquivalent or with a trivalent and a bivalent were delayed in their development and appeared at prometaphase and metaphase later than cells with alternate quinquivalents. Delay in cell development is ascribed to unfavorable (early) prophase positioning of chromosomes.
摘要
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