C-band Polymorphism in Paris tetraphylla Chromosomes in Four Populations of Kumamoto Prefecture.

Uchino, Akinori; Wang, L.

doi:10.1508/cytologia.62.181

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…The chromosomes of the Schoenoplectus plants were small and dot-like, similar to other members of the family Cyperaceae. Generally, small, dot-like chromosomes such as the B-chromosome, tend towards elimination, undivision or lagging in mitosis (Haga 1961, Kayano 1961, Jones and Rees 1982, Uchino and Wang 1997. Moreover, the Schoenoplectus plants may have chromosomes with diffused centromeres similar to Luzula and Cyperus of the family Cyperaceae (Braselton 1971).…”

Section: Discussionmentioning

confidence: 99%

Stability and Variability of Chromosome Numbers in the Genus Schoenoplectus (Cyperaceae). I. S. gemmifer, S. mucronatus var. mucronatus and S. triangulatus

Maeda

Uchino

2004

CYTOLOGIA

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The chromosomes of the new species Schoenoplectus gemmifer and the allied S. mucronatus var. mucronatus and S. triangulatus were studied in culm-apex cells and root-tip cells. The mitotic metaphase chromosomes were small and dot-like. The chromosome number in culm-apex cells was stable and was observed to be 2nϭ74 in S. gemmifer, 2nϭ38 in S. mucronatus, and 2nϭ42 in S. triangulatus, respectively. Thus, it was confirmed that the new species S. gemmifer was cytologically different from both S. mucronatus and S. triangulatus. Inter-and intra-individual variations in chromosome number, mixoploidy and aneuploidy, were found in the root-tip cells of the three species. Chromosome number (2n) varied from 68 to 74 in S. gemmifer, 2nϭ32 to 39 in S. mucronatus and 2nϭ37 to 44 in S. triangulatus, respectively. This phenomenon is very rare and this is the first report in the genus Schoenoplectus.

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Section: Discussionmentioning

confidence: 99%

Stability and Variability of Chromosome Numbers in the Genus Schoenoplectus (Cyperaceae). I. S. gemmifer, S. mucronatus var. mucronatus and S. triangulatus

Maeda

Uchino

2004

CYTOLOGIA

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“…Miyamoto et al (1992) detected C-banding positive heterochromatin blocks and discussed interspecific variation in 18 taxa of the genus Paris. Uchino and Wang (1997) detailed features of C-band polymorphism in P. tetraphylla. C-banding patterns in this species are usually distributed in the centromere and terminal region (Miyamoto and Kurita 1990;Miyamoto et al 1992;Uchino and Wang 1997).…”

mentioning

confidence: 99%

“…Uchino and Wang (1997) detailed features of C-band polymorphism in P. tetraphylla. C-banding patterns in this species are usually distributed in the centromere and terminal region (Miyamoto and Kurita 1990;Miyamoto et al 1992;Uchino and Wang 1997). The taxa showed great disparity on C-heterochromatin; however, the data on populations in China is available for less than 10% of the taxa (Gu 1984;Gu and Na 1986;Gu and Li 1988).…”

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confidence: 99%

C-banding patterns in six taxa ofParis(Melanthiaceae)

Cheng

Zhou

et al. 2014

Caryologia

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C-banding patterns were analyzed in six taxa of Paris: P. polyphylla var. chinensis, P. marmorata, P. luquanensis, P. thibetica, P. polyphylla var. yunnanensis and P. polyphylla var. alba. All plants had a diploid chromosome number of 10. The basic banding consisted of three metacentric and two teloblastic chromosomes. All taxa showed interspecific variation in karyotype structure. P. thibetica had a unique C-banding pattern, having six bands on the long arm of the middle median centromeric chromosomes. P. polyphylla var. yunnanensis had mostly faint C-bands. Chromosome morphology and C-banding patterns have been used for chromosome identification and population divergence detection.

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Biology

2020

A Monograph of Paris (Melanthiaceae)

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C-band Polymorphism in Paris tetraphylla Chromosomes in Four Populations of Kumamoto Prefecture.

Cited by 6 publications

References 9 publications

Stability and Variability of Chromosome Numbers in the Genus <i>Schoenoplectus</i> (Cyperaceae). I. <i>S. gemmifer</i>, <i>S. mucronatus</i> var. <i>mucronatus</i> and <i>S. triangulatus</i>

Stability and Variability of Chromosome Numbers in the Genus <i>Schoenoplectus</i> (Cyperaceae). I. <i>S. gemmifer</i>, <i>S. mucronatus</i> var. <i>mucronatus</i> and <i>S. triangulatus</i>

C-banding patterns in six taxa ofParis(Melanthiaceae)

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