Chromosome behavior during meiosis and development of spore mother cells in the Chinese quillwort Isoetes sinensis TC Palmer (Isoetaceae)
文献类型：期刊论文
| 作者 | He, ZC; Wang, HC; Li, JQ; Ye, QG; Taylor, WC |
| 刊名 | AMERICAN FERN JOURNAL
 |
| 出版日期 | 2004-10-01 |
| 卷号 | 94期号:4页码:183-195 |
| ISSN号 | 0002-8444 |
| 英文摘要 | Chromosome behavior during meiosis of the tetraploid Isoetes sinensis was observed to be similar to that of basic diploid Isoetes species. This observation was consistent with the previous report that polyploid species of Isoetes are allopolyploids. Meiosis was generally similar in both megaspore and microspore mother cells, but differences were observed. Due to the smaller size of the microspore mother cells, during prophase I, chromosomes are not as dispersed as those in megaspore mother cells. Cytomixis was observed in all stages of meiosis in microspore mother cells, but it was not seen at any stage of meiosis in megaspore mother cells. Cytomixis, lagging chromosomes, chromosome bridges, chromosome fragments, and micronuclei, observed during meiosis in I.sinensis, can affect sexual reproduction, but it does not appear to be a major cause of population decline in this species. The major cause of decline is habitat degradation from human disturbance. The few remaining populations of the Chinese quillwort are fragmented and the numbers of individuals contained in these populations dwindle as a result of habitat degradation. Conservation efforts are needed to save L. sinensis from extinction. |
| WOS研究方向 | Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000226948300002 |
| 出版者 | AMER FERN SOC INC |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/1212]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | He, ZC |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China 2.Milwaukee Publ Museum, Dept Bot, Milwaukee, WI 53233 USA |
| 推荐引用方式 GB/T 7714 | He, ZC,Wang, HC,Li, JQ,et al. Chromosome behavior during meiosis and development of spore mother cells in the Chinese quillwort Isoetes sinensis TC Palmer (Isoetaceae)[J]. AMERICAN FERN JOURNAL,2004,94(4):183-195. |
| APA | He, ZC,Wang, HC,Li, JQ,Ye, QG,&Taylor, WC.(2004).Chromosome behavior during meiosis and development of spore mother cells in the Chinese quillwort Isoetes sinensis TC Palmer (Isoetaceae).AMERICAN FERN JOURNAL,94(4),183-195. |
| MLA | He, ZC,et al."Chromosome behavior during meiosis and development of spore mother cells in the Chinese quillwort Isoetes sinensis TC Palmer (Isoetaceae)".AMERICAN FERN JOURNAL 94.4(2004):183-195. |
入库方式： OAI收割
来源：武汉植物园
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。