Cytogeography of Taraxacum albidum (Asteraceae) in Japan

Kyoko Sato, Takahiro Yamazaki, Yoshikane Iwatsubo*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

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 languageEnglish
Pages (from-to)201-212
Number of pages12
JournalCytologia
Volume76
Issue number2
DOIs
StatePublished - 2011/06

Keywords

  • Asteraceae
  • Chromosome number
  • Cytogeography
  • Karyotype
  • Polyploidy
  • Taraxacum albidum

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Genetics
  • Plant Science
  • Cell Biology

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