| 中国阿魏属的细胞分类学研究 |
| |
| 引用本文： | 刘启新,佘孟兰,陈晓亚.中国阿魏属的细胞分类学研究[J].中国科学院研究生院学报,1993,31(5):413-421. |
| |
| 作者姓名： | 刘启新 佘孟兰 陈晓亚 |
| |
| 摘 要： | 本文首次报道和分析了阿魏属Ferula L.分布区东缘3个种的染色体数目和核型。 太行阿魏F.
licentiana Hand.-Mazz．的核型公式为2n=22=14m+2sm+6st(2sat)，铜山阿魏F．licentianc
Hand．-Mazz．var．tunshanica(Su)Shan et Q．X．Liu的核型公式为2n=22=14m+8st(2sat)，
硬阿魏F．bungeana Kitag．的核型公式为2n=22=12m+6sm+2st。 它们的核型都属2A型．在此基
础上从染色体角度进一步论证了铜山阿魏作为太行阿魏的变种和硬阿魏从近前胡亚属 Subgen.
Peucedanoides(Boiss.)Korov．中分出的合理性．根据已有资料，提出该属的染色体基数为X=11,
基本核型公式为2n=22=14m+4sm+4st。 本属核型对称性偏高，核型变异性偏小，与该属的自然性和稳
定性以及该属的分类地位的合理性和可靠性相吻合。 本文还分析了国产阿魏属内各种类的核型，进化程度，并对它们进行了细胞分类处理，对于出现与经典分类不一致的原因进行了讨论。
|
| 关 键 词： | 伞形科 阿魏属 核型 细胞分类学 |
Cytotaxonomy of Ferula L. in China |
| |
| Liu Qi-xin,Sheh Meng-lan,Chen Xiao-ya.Cytotaxonomy of Ferula L. in China[J].Journal of the Graduate School of the Chinese Academy of Sciences,1993,31(5):413-421. |
| |
| Authors: | Liu Qi-xin Sheh Meng-lan Chen Xiao-ya |
| |
| Abstract: | The karyotypes of somatic cells of three species in Ferula L.
(Umbelliferae) from China are reported for the first time in this paper. F.
licentiana Hand. -Mazz., endemic to China, has the karyotype formula of
2n= 22= 14m+ 2sm+ 6st( 2SAT), which consists of nine pairs of L
chromosomes (the relative length > 8.0) and two pairs of M chromosomes (the rel-
ative length, 8.0- 6.0). The index of the karyotypic asymmetry (AS. K%) is
36.36%, and the karyotype belongs to 2A (Stebbins 1971). F. licentiana var.
tunshanica (Su) Shan et Q. X. Liu has the karyotypic formula of
2n=22= 14m+ 8st(2SAT), and the other characters of karyotype are very similar
to those of F. licentiana. The karyotypic formula of F. bungeana Kitag. is
2n=22= 12m+ 6sm+ 2st. There are 8 pairs of L chromosomes and 3 pairs of M
chromosomes in this karyotype. The AS.K% is 45.45% and thus the karyotype is
rather symmetrical (2A).
Based on above data, F.licentiana var. tunshanica may be treated as a variety
of F.licentiana and F.bungeana be separated from Subgen. Peucedanoides. According
to our study and available data, we consider that the basic chromosome number
of Ferula is x= 11. The karyotypic evolution of 11 species in the genus from
China is analysed.
All species are grouped into 5 groups based on the cluster analysis of
chromosome data: I.F. akitschensis B. Fedtsch. ex K.-Pol.; II. F. lapidosa
Korov., III. F. bungeana. The above-mentioned three species belong to Subgen.
Peucedanoides in classification. IV. This group is divided into two subgroups:
(1) F. syreitschikowii K.-Pol. and F. ovina (Boiss.) Boiss.; (2) F. lehmannii
Boiss., F. licentiana, F. licentiana var. tunshanica, F. Kirialovii Pimen. and F.
sumbul (Kauffm.)Hook. f., in which F.lehmannii belongs to Subgen. Merwia, F.
syteritschikowii to Subgen. Narthex and the rest five species to Subgen.Peucedanoides. V. F.caspica M. Bieb. of Subgen. Doromatoides. |
| |
| Keywords: | Umbelliferae Ferula Karyotype Cytotaxonomy |
|
| 点击此处可从《中国科学院研究生院学报》浏览原始摘要信息 |
| 点击此处可从《中国科学院研究生院学报》下载免费的PDF全文 |
|
