| 6x小簇麦与8x小偃麦杂种F_1的细胞遗传学分析 |
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| 引用本文： | 傅体华,任正隆.6x小簇麦与8x小偃麦杂种F_1的细胞遗传学分析[J].四川农业大学学报,1998,16(4):394-397. |
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| 作者姓名： | 傅体华 任正隆 |
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| 作者单位： | 四川农业大学农学院作物遗传育种省级重点实验室/雅安市625014 |
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| 基金项目： | 四川省科委生物技术计划资助 |
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| 摘 要： | 用６ｘ小簇麦与８ｘ小偃麦进行杂交，获得杂种植株，对杂种Ｆ１的形态学、减数分裂行为进行分析的结果表明，杂种Ｆ１继承了双亲抗白粉病、条锈病的特性；减数分裂时期单价体明显偏多于理论值，在末期Ⅱ中存在大量微核。杂种Ｆ１雌配子有部分育性，可以通过与普通小麦的连续回交，在其后代中选择符合育种需要的着丝粒断裂－融合和小片段易位系。
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| 关 键 词： | 小簇麦 小偃麦 杂种 染色体配对 易位系 |
CYTOGENETIC ANALYSIS OF F1 HYBRID BETWEEN 6x TRITICUM DURUM-DASYPYRUM VILLOSUM AMPHIPLOID AND 8x AGROTRITICUM |
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| Fu Tihua,Ren Zhenglong.CYTOGENETIC ANALYSIS OF F1 HYBRID BETWEEN 6x TRITICUM DURUM-DASYPYRUM VILLOSUM AMPHIPLOID AND 8x AGROTRITICUM[J].Journal of Sichuan Agricultural University,1998,16(4):394-397. |
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| Authors: | Fu Tihua Ren Zhenglong |
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| Abstract: | The F 1 hybrid plants were obtained between 6x Triticum durum Dasypyrum villosum amphiploid and 8x Agrotriticum. The analysis of morphology for the hybrid plants and chromosome pairing at meiosis metaphase I in the F 1 hybrid indicate that F 1 plants are morphologically more similar to 8x Agrotriticum, and resistance to powdery mildew and yellow rust are derived from their parents, and univalents in meiotic MI are more than expected, a number of micronuclei in tetrad phase of meiosis are also observed. The hybrid F 1 is partial egg fertile and backcrossed seed is produced when common wheat is as pollen parent, which infer that desirable materials, such as translocarion lines, can be selected from the backcrossed progenies for wheat improvement. |
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| Keywords: | TRITICUM DURUM DASYPYRUM VILLOSUM AMPHIPLOI AGROTRITICUM HYBRID CHROMOSOME PAIRING TRANSLOCATION LINE |
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