| 九个中国北部普通小麦品种T.aestivum同源转化群5单体单价体在减数分裂后期Ⅰ时的错分裂 |
| |
| 引用本文： | 樊路,R.Morris.九个中国北部普通小麦品种T.aestivum同源转化群5单体单价体在减数分裂后期Ⅰ时的错分裂[J].作物学报,1986,0(1):21-30. |
| |
| 作者姓名： | 樊路 R.Morris |
| |
| 作者单位： | 中国农业科学院作物育种栽培研究所; 美国内布拉斯加大学农学系细胞遗传实验室 |
| |
| 摘 要： | 首次对中国北部品种同源转化群5单体单价体错分裂及单双极分布进行了研究。单体5A、5B 和5D 减数分裂后期Ⅰ错分裂频率分别为14.2%、9.2%和9.1%。中国春5A 具有最高错分裂频率(40.0%)。单体染色体或它们的错分裂产物的单极分布频率从18.6%到36.7%。双极分布频率比单极分布频率高,并随错分裂产物的增加而增加。一次、二次、三次错分裂频率差异很大。与欧、美品种相比中国北部品种同源转化群5错分裂行为与日本品种更相似。
|
| 收稿时间： | 1984-10-30 |
MISDIVISION OF HOMOEOLOGOUS GROUP 5 MONOSOMIC UNIVALENTS FROM NINE NORTH CHINESE COMMON WHEAT CULTIVARS (T.AESTIVUM) AT ANAPHASE I OF MEIOSIS |
| |
| Fan Lu,R.Morris.MISDIVISION OF HOMOEOLOGOUS GROUP 5 MONOSOMIC UNIVALENTS FROM NINE NORTH CHINESE COMMON WHEAT CULTIVARS (T.AESTIVUM) AT ANAPHASE I OF MEIOSIS[J].Acta Agronomica Sinica,1986,0(1):21-30. |
| |
| Authors: | Fan Lu RMorris |
| |
| Institution: | Chinese Academy of Agricultural Sciences;Department of Agronomy; University of Nebraska-LincoIn; U.S.A. |
| |
| Abstract: | Misdivisions and polar distributions of wheat monosomes 5A,5B,and 5D from nine north Chinese cultivars were determined in F_1 plantsfrom crosses between Chinese Spring group 5 monosomics and eachof the Chinese cultivars.The frequencies of anaphases Ⅰ cells with mis-divisions were 14.2% for 5A,9.2% for 5B,and 9.1% for 5D,withsignificant differences among chromosomes,cultivars,and chromosome-cultivar interactions.Chinese Spring 5A in its own background had thehighest misdivision rate(40%).Misdivision rates we... |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《作物学报》浏览原始摘要信息 |
| 点击此处可从《作物学报》下载免费的PDF全文 |
