Cytogeography of Taraxacum venustum and T. shikotanense (Asteraceae) in Japan

Kyoko Sato; Takahiro Yamazaki; Yoshikane Iwatsubo

doi:10.1508/cytologia.85.223

Cytogeography of Taraxacum venustum and T. shikotanense (Asteraceae) in Japan

Kyoko Sato^*, Takahiro Yamazaki, Yoshikane Iwatsubo

^*Corresponding author for this work

Department of Biology

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We report on polyploidy, karyotypes, and cytogeographical distribution of two species of native agamospermous Taraxacum in Japan. Taraxacum venustum had two polyploid numbers of 2n=3x=24 and 2n=4x=32. Four karyotypes were found in tetraploid plants. In T. shikotanense, there were seven chromosome numbers: 2n=47 (hypohexaploid), 48 (hexaploid), 56 (heptaploid), 64 (octoploid), 72 (nonaploid), 80 (decaploid), and 88 (undecaploid). Our study reveals that some races in both T. venustum and T. shikotanense can be differentiated according to their polyploidy and karyotypes.

Original language	English
Pages (from-to)	223-231
Number of pages	9
Journal	Cytologia
Volume	85
Issue number	3
DOIs	https://doi.org/10.1508/cytologia.85.223
State	Published - 2020/09/25

Keywords

Allopolyploidy
Asteraceae
Chromosome number
Karyotype
Taraxacum shikotanense
Taraxacum venustum

ASJC Scopus subject areas

Animal Science and Zoology
Genetics
Plant Science
Cell Biology

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10.1508/cytologia.85.223

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title = "Cytogeography of Taraxacum venustum and T. shikotanense (Asteraceae) in Japan",

abstract = "We report on polyploidy, karyotypes, and cytogeographical distribution of two species of native agamospermous Taraxacum in Japan. Taraxacum venustum had two polyploid numbers of 2n=3x=24 and 2n=4x=32. Four karyotypes were found in tetraploid plants. In T. shikotanense, there were seven chromosome numbers: 2n=47 (hypohexaploid), 48 (hexaploid), 56 (heptaploid), 64 (octoploid), 72 (nonaploid), 80 (decaploid), and 88 (undecaploid). Our study reveals that some races in both T. venustum and T. shikotanense can be differentiated according to their polyploidy and karyotypes.",

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note = "Publisher Copyright: {\textcopyright} 2020 The Japan Mendel Society.",

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doi = "10.1508/cytologia.85.223",

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AU - Sato, Kyoko

AU - Yamazaki, Takahiro

AU - Iwatsubo, Yoshikane

PY - 2020/9/25

Y1 - 2020/9/25

N2 - We report on polyploidy, karyotypes, and cytogeographical distribution of two species of native agamospermous Taraxacum in Japan. Taraxacum venustum had two polyploid numbers of 2n=3x=24 and 2n=4x=32. Four karyotypes were found in tetraploid plants. In T. shikotanense, there were seven chromosome numbers: 2n=47 (hypohexaploid), 48 (hexaploid), 56 (heptaploid), 64 (octoploid), 72 (nonaploid), 80 (decaploid), and 88 (undecaploid). Our study reveals that some races in both T. venustum and T. shikotanense can be differentiated according to their polyploidy and karyotypes.

AB - We report on polyploidy, karyotypes, and cytogeographical distribution of two species of native agamospermous Taraxacum in Japan. Taraxacum venustum had two polyploid numbers of 2n=3x=24 and 2n=4x=32. Four karyotypes were found in tetraploid plants. In T. shikotanense, there were seven chromosome numbers: 2n=47 (hypohexaploid), 48 (hexaploid), 56 (heptaploid), 64 (octoploid), 72 (nonaploid), 80 (decaploid), and 88 (undecaploid). Our study reveals that some races in both T. venustum and T. shikotanense can be differentiated according to their polyploidy and karyotypes.

KW - Allopolyploidy

KW - Asteraceae

KW - Chromosome number

KW - Karyotype

KW - Taraxacum shikotanense

KW - Taraxacum venustum

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Cytogeography of Taraxacum venustum and T. shikotanense (Asteraceae) in Japan

Abstract

Keywords

ASJC Scopus subject areas

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