摘要
研究了国产毛茛科银莲花族Trib .Anemoneae 1 7种植物的染色体数目和核型。 1 0种银莲花属AnemoneL .植物中 ,1种 (西南银莲花A .davidii)为x =8的四倍体 ( 2n =4x =32 ) ,5种 (匍枝银莲花A .stolonifera、草玉梅A .rivularis、卵叶银莲花A .begoniifolia、水棉花A .hupehensisf.alba、大火草A .tomen tosa)为x =8的二倍体 ( 2n =2x =1 6) ,4种 (鹅掌草A .flaccida、湿地银莲花A .rupestris、蓝匙叶银莲花A .trullifoliavar.colestina、拟条叶银莲花A .trullifoliavar.holophylla、展毛银莲花A .demissa)为x=7的二倍体 ( 2n =2x =1 4)。罂粟莲花Anemoclemaglaucifolium为x =8的二倍体。 6种铁线莲属ClematisL .植物 (滇川铁线莲C .kockiana、长花铁线莲C .rehderiana、毛茛铁线莲C .ranunculoides、扬子铁线莲C .puberulavar.ganpiniana、短尾铁线莲C .brevicaudata、金毛铁线莲A .chrysocoma)均为x=8的二倍体。银莲花属中x =7的种类的核型彼此十分相似 ,均由 6对大型具中部着丝点的染色体和 1对具端部着丝点的染色体组成 ;x =8的二倍体种类的核型与罂粟莲花属和铁线莲属植物的核型十分相似 ,均由 5对大型具中部着丝点和 3对具端部或近端部着丝点的染色体组成。
The somatic chromosome number and detailed chromosome morphology have been studied in ten species of Anemone , one species of Anemoclema , and six species of Clematis , all from China, namely Anemone davidii Franch. (2n=4x=32), A. stolonifera Maxim. (2n=2x=16), A. flaccida Fr. Schmidt (2n=2x=14), A. rivularis Buch._Ham. (2n=2x=16), A. begoniifolia Lévl. et Vant. (2n=2x=16), A. hupehensis Lem. f. alba W. T. Wang (2n=2x =16), A. tomentosa (Maxim.) Péi (2n=2x=16), A. rupestris Hook. f. et Thoms. (2n=2x=14), A. trullifolia var. colestina (Franch.) Finet et Gagnep. (2n=2x=14), A. trullifolia var. holophylla Diels (2n=2x=14), A. demissa Hook. f. et Thoms. (2n=2x=14), Anemoclema glaucifolium (Franch.) W. T. Wang (2n=2x=16), Clematis kockiana Schneid. (2n=2x=16), C. rehderiana Craib. (2n=2x=16), C. ranunculoides Franch. (2n=2x=16), C. puberula var. ganpiniana (Lévl. et Vant.) W. T. Wang (2n=2x=16), C. brevicaudata DC. (2n=2x=16), C. chrysocoma Franch. (2n=2x=16). The species of x=8 in Anemone , and those in Anemoclema and Clematis have very similar karyotypes which consist of five pairs of large median_centromeric (rarely one pair of which are submedian_centromeric) and three pairs of subterminal_ or terminal_centromeric chromosomes.
出处
《植物分类学报》
CSCD
北大核心
2002年第5期396-405,共10页
Acta Phytotaxonomica Sinica
基金
SupportedbyaKeyProjectGrantfromtheChineseAcademyofSciences (NaturalResourcesandEnvironment)
