The Japanese Journal of Genetics
Online ISSN : 1880-5787
Print ISSN : 0021-504X
ISSN-L : 0021-504X
Recovery of a SAT-chromosome a2 incurred differential amphiplasty in amphidiploids of Scilla scilloides Druce
Akinori UCHINOToshihiro MIYAZAKI
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1986 Volume 61 Issue 3 Pages 245-252

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Abstract
Chromosome constitution was analyzed in progenies from the translocation heterozygous allotetraploids (2n=34, AATBBT) of Scilla scilloides Druce. Fifteen plants out of 139 selfed and 25 open-pollinated progenies were homo- or heterozygous for the chromosome a2S carrying a large satellite, though the parental plants had no satellited a2. This SAT-chromosome is similar to satellited a2 present in the Korean diploid AA but not to non-satellited a2 found in allopolyploids. Thus satellited a2 which incurred differential amphiplasty may possibly have recovered its normal shape in the allotetraploids. Diploid AA comprising satellited a2 may possibly contribute to the synthesis of allopolyploids.
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© The Genetics Society of Japan
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