Abstract
Chromosome numbers of Taraxacum albidum were examined in 1308 plants collected from 202 localities throughout the distribution areas of this species in Japan. The species had 2n-32 (tetraploid), 39 (hypopentaploid) and 40 chromosomes (pentaploid). Out of 1308 plants examined 88 (6.7%) were tetraploids, 1219 (93.2%) were pentaploids and a plant was a hypopentaploid. Tetraploids were distributed exclusively in Kyushu, whereas pentaploids throughout all the distribution areas in Honshu, Shikoku and Kyushu. Pentaploids had 2 forms of karyotypes, whereas tetraploids showed a uniform karyotype. Thus, 2 forms of pentaploids in karyotype are considered to be distinct clones.
Original language | English |
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Pages (from-to) | 201-212 |
Number of pages | 12 |
Journal | Cytologia |
Volume | 76 |
Issue number | 2 |
DOIs | |
State | Published - 2011/06 |
Keywords
- Asteraceae
- Chromosome number
- Cytogeography
- Karyotype
- Polyploidy
- Taraxacum albidum
ASJC Scopus subject areas
- Animal Science and Zoology
- Genetics
- Plant Science
- Cell Biology