Chromosomal localization of 5S rDNA in the genomes A and B of the Scilla scilloides complex, Liliaceae
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概要
- 論文の詳細を見る
Fragments of 5S rDNA amplified by polymerase chain reaction varied in length between the genomes A and B in the Scilla scilloides complex. 5S rDNA was hybridized in situ to the somatic chromosomes of AA and BB diploids, ABB triploid and AABB amphidiploids. In the genome A a 5S rRNA locus was mapped at the proximal region of one arm of the short metacentric a_8-chromosome. In the genome B two 5S rRNA loci were localized at the interstitial region of the short arm of subtelocentric b_2-chromosome and at the proximal region of one arm of the short metacentric b_8-chromosome. The ABB and AABB had five and six loci derived from both genomes, respectively. The amount of 5S rDNA of certain genome did not change in allopolyploid condition in contrast with the 18S-26S rRNA locus.
- 財団法人染色体学会の論文
著者
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Araki Hiroto
Department Of Biology Fukuoka University Of Education
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Hizume Masahiro
Biological Institute, Faculty of Education, Ehime University
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Hizume Masahiro
Biological Inst. Fac. Of Education Ehime Univ.
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