| 克服甘薯组(Section Batatas)种间杂交不亲和性研究初报 |
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| 引用本文： | 王家旭,陆漱韵.克服甘薯组(Section Batatas)种间杂交不亲和性研究初报[J].作物学报,1993,19(2):111-118. |
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| 作者姓名： | 王家旭 陆漱韵 |
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| 作者单位： | 北京农业大学，北京农业大学 北京，100094，北京，100094 |
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| 基金项目： | 高等学校博士学科点专项科研基金 |
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| 摘 要： | 本试验以甘薯组A群二倍体野生种和B群四倍本野生种及六倍体栽培种为材料,通过植物激素处理,克服A群与B群种间的杂交不亲和性,经激素处理的种间杂种进行胚胎培养,克服杂种胚胎发育的不协调,以探索利用A群基因资源的有效途径。主要结果为:1)甘薯组A群野生种I.triloba、I.lacunosa和B群野生种I.littoralis,栽培种I.batatas之间所配组合的杂交结实率为零,说明A群与B群之间种间杂交不亲和性是完全存在的。2)用植物激素2,4-D和BA处理种间杂交组合母本的花器,可以延长花器寿命,克服种间杂交的不亲和性,提高结实率。3)选用A群野生种I.triloba为母本,对克服A群与B群种间杂交不亲和性有积极意义。4)研究确定授粉后经激素处理11天以后的种间杂种进行胚胎培养,成苗率高。BA在杂种胚胎培养中起重要作用。5)在不亲和种间杂交组合I.triloba(2n=2x=30)×I.littoralis2n=2x=60)中获得体细胞染色体数2n=45的种间杂种,实现了甘薯组A群与B群有关种间的基因交流。
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| 关 键 词： | 甘薯 杂交不亲和性 植物激素处理 胚胎培养 |
| 收稿时间： | 1991-01-03 |
| 修稿时间： | 1992-08-04 |
Primary Report of Studies on Overcoming the Interspecific Incompatibility and Hybrid Abortion between Series A and B in the Section Batatas of Genus Ipomoea |
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| Wang Jia-xu,Lu Shu-yun Beijing Agricultural University,Beijing.Primary Report of Studies on Overcoming the Interspecific Incompatibility and Hybrid Abortion between Series A and B in the Section Batatas of Genus Ipomoea[J].Acta Agronomica Sinica,1993,19(2):111-118. |
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| Authors: | Wang Jia-xu Lu Shu-yun Beijing Agricultural University Beijing |
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| Institution: | Beijing Agricultural University,Beijing,100094 |
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| Abstract: | This investigation was carried out to search for the methods of overcoming cross-incompatibility and hybrid unseeding between Series A and B in the Section batatas by using phant hormone treatment and hybrid ovule culture. The major results of the study may be summarized as follows:
(1)The perc |
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| Keywords: | Ipomoea Cross- incompatibility Plant hormone treatment Ovule culture |
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