Chromosomes in four species of Parnassia(Saxifragaceae) in the northern part of Sichuan Province, China.
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Accession number;02A0287868
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| Title;Chromosomes in four species of Parnassia(Saxifragaceae) in the northern part of Sichuan Province, China. |
| Author;
FUNAMOTO T
(Showa Pharmaceutical Univ., Tokyo)
KONDO K
(Hiroshima Univ., Hiroshima, Jpn)
HONG D-Y
(Inst. Botany, Chinese Acad. Sci., Beijing, Chn)
ZHOU S-L
(Inst. Botany, Chinese Acad. Sci., Beijing, Chn)
OGURA H
(Okayama Univ., Okayama, Jpn)
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Journal Title;Chromosome Sci
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Journal Code:S0638B
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ISSN:1344-1051
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VOL.5;NO.1;PAGE.19-25(2001)
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| Figure&Table&Reference;FIG.4, TBL.2, REF.14 |
| Pub. Country;Japan |
| Language;English |
| Abstract;Parnassia aff. cacuminum f. yushuensis, P. viridifolia, P. brevistyla, and P. delavayi in section Nectarotrilobos were chromosomally studied: They had commonly the simple chromocenter type of resting chromosomes and the proximal type of mitotic prophase chromosomes. The chromosome number of 2n=18 in P. aff. cacuminum f. yushuensis, and that of 2n=14 in P. brevistyla were reported here for the first time. The chromosome number of 2n=14 in P. delavayi supported the previous count. However, the chromosome number of 2n=36 in P. viridifolia was different from that of the previous count of 2n=18. The chromosomes of P. aff. cacuminum f. yushuensis (2.3-1.5 .MU.m long) and P. viridifolia (2.1-1.4 .MU.m long) were small sized, while those of P. brevistyla (3.6-2.7 .MU.m long) and P. delavayi (4.5-3.2 .MU.m long) were large sized. Parnassia aff. cacuminum f. yushuensis had median-centromeric chromosomes of the chromosome complement in centromeric position at mitotic metaphase, while the other three species had median- and submedian-centromeric chromosomes. (author abst.) |
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