Karyomorphology of Biebersteinia Stephan (Geraniaceae) and its systematic and taxonomic significance
文献类型：期刊论文
| 作者 | Liu, JQ; Ho, TN; Chen, SL; Lu, AM |
| 刊名 | botanical bulletin of academia sinica
 |
| 出版日期 | 2001 |
| 卷号 | 42期号:1页码:61-66 |
| 关键词 | Biebersteinia karyomorphology systematics |
| 合作状况 | 其它 |
| 中文摘要 | the systematic and taxonomic position of biebersteinia stephan has long been in dispute. the present paper describes for the first time the karyomorphology of two species in biebersteinia stephan. both species commonly showed the interphase nuclei of the simple chromocenter type and the mitotic prophase chromosomes of the interstitial type. the karyotype formulae of both b. heterostemon and b. odora were 2n=10=2m(2sec)+8sm(2sec), belonging to the 3a type of stebbins' classification. the karyotype of this genus is recorded for the first time. the basic chromosome numbers of four of the five known species of biebersteinia have been recorded as x=5. the combination of resting nuclei of the simple chromocenter type, mitotic prophase chromosomes of the interstitial type, two pairs of chromosomes with four obvious secondary constrictions at the mitotic prophase and metaphase stages, and the peculiar 3a karyotype in biebersteinia can be regarded as the karymorphological marker of this genus. the karyomorphological data presented here do not support the traditional grouping of this genus in geraniaceae. the unique karyomorphology of biebersteinia justifies its familiar or ordinal status, which is congruent with embryological, anatomical, chemical and molecular data. the systematic position of biebersteinia needs further study. |
| 英文摘要 | the systematic and taxonomic position of biebersteinia stephan has long been in dispute. the present paper describes for the first time the karyomorphology of two species in biebersteinia stephan. both species commonly showed the interphase nuclei of the simple chromocenter type and the mitotic prophase chromosomes of the interstitial type. the karyotype formulae of both b. heterostemon and b. odora were 2n=10=2m(2sec)+8sm(2sec), belonging to the 3a type of stebbins' classification. the karyotype of this genus is recorded for the first time. the basic chromosome numbers of four of the five known species of biebersteinia have been recorded as x=5. the combination of resting nuclei of the simple chromocenter type, mitotic prophase chromosomes of the interstitial type, two pairs of chromosomes with four obvious secondary constrictions at the mitotic prophase and metaphase stages, and the peculiar 3a karyotype in biebersteinia can be regarded as the karymorphological marker of this genus. the karyomorphological data presented here do not support the traditional grouping of this genus in geraniaceae. the unique karyomorphology of biebersteinia justifies its familiar or ordinal status, which is congruent with embryological, anatomical, chemical and molecular data. the systematic position of biebersteinia needs further study. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 学科主题 | 植物学 |
| 类目[WOS] | plant sciences |
| 研究领域[WOS] | plant sciences |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000166497200009 |
| 公开日期 | 2009-12-10 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/1428]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, NW Plateau Inst Biol, Xining 810001, Peoples R China 2.Chinese Acad Sci, Inst Bot, Plant Systemat & Evolutionary Lab, Beijing 100093, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, JQ,Ho, TN,Chen, SL,et al. Karyomorphology of Biebersteinia Stephan (Geraniaceae) and its systematic and taxonomic significance[J]. botanical bulletin of academia sinica,2001,42(1):61-66. |
| APA | Liu, JQ,Ho, TN,Chen, SL,&Lu, AM.(2001).Karyomorphology of Biebersteinia Stephan (Geraniaceae) and its systematic and taxonomic significance.botanical bulletin of academia sinica,42(1),61-66. |
| MLA | Liu, JQ,et al."Karyomorphology of Biebersteinia Stephan (Geraniaceae) and its systematic and taxonomic significance".botanical bulletin of academia sinica 42.1(2001):61-66. |
入库方式： OAI收割
来源：西北高原生物研究所
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