| Inheritance of Ear Tip-Barrenness Trait in Maize |
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| 作者姓名： | MENG Zhao-dong ZHANG Fa-jun DING Zhao-hua SUN Q i WANG Li-ming GUO Qing-fa WANG Hong-gang |
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| 作者单位： | [1]Agronomy College, Shandong Agricultural University~National Wheat Improvement Sub-Center, Taian 271018, P.R.China [2]Maize Institute, Shandong Academy of Agricultural Sciences~National Maize Improvement Sub-Center, Jinan 250100, P.R.China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | The aim of this paper is to study the inheritance pattern of ear tip-barrenness trait in maize （Zea mays L.）. Ear tipbarrenness trait in maize can be classified into two types, tip-barren and tip-barrenless. Two inbred lines, lx01-3 （tipbarrenless type）, wx04-1 （tip-barren type）, and their F1, F2, BC1, BC2 generations were analyzed on their ear tip-barrenness types. Results showed that F1 was tip-barren type; the ratio of tip-barren type versus tip-barrenless type followed a 12.78： 1 ratio in F2 segregation population and a 2.75：1 ratio in BC1. Z2 test indicated that the trait of ear tip-barrenness type followed an inheritance pattern of 2 duplicate dominant genes. SPSS analysis indicated that the trait of ear tip-barrenness length is of abnormal distribution. Above results mean that： （1） The trait of maize ear tip-barrenness type is controlled by 2 duplicate dominant genes; tip-barren type is dominant over tip-barrenless type; （2） the trait of tip-barrenness length is a quantitative character controlled by polygene with major genes expected.
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| 关 键 词： | 玉米 穗尖不育性状 遗传性 结籽 |
Inheritance of Ear Tip-Barrenness Trait in Maize |
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| MENG Zhao-dong ZHANG Fa-jun DING Zhao-hua SUN Q i WANG Li-ming GUO Qing-fa WANG Hong-gang.Inheritance of Ear Tip-Barrenness Trait in Maize[J].Agricultural Sciences in China,2007,6(5):628-633. |
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| Authors: | MENG Zhao-dong ZHANG Fa-jun DING Zhao-hua SUN Qi WANG Li-ming GUO Qing-fa WANG Hong-gang |
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| Institution: | 1. Agronomy College, Shandong Agricultural University/National Wheat Improvement Sub-center, Tuian 271018, P.R.China;2. Maize Institute, Shandong Academy of Agricultural Sciences/National Maize Improvement Sub-center, Jinan 250100, P.R.China |
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| Abstract: | The aim of this paper is to study the inheritance pattern of ear tip-barrenness trait in maize (Zea mays L.). Ear tipbarrenness trait in maize can be classified into two types, tip-barren and tip-barrenless. Two inbred lines, Ix01-3 (tipbarrenless type), wx04-1 (tip-barren type), and their F1, F2, BC1, BC2 generations were analyzed on their ear tip-barrenness types. Results showed that F1 was tip-barren type; the ratio of tip-barren type versus tip-barrenless type followed a 12.78∶1 ratio in F2 segregation population and a 2.75∶1 ratio in BC1. χ2 test indicated that the trait of ear tip-barrenness type followed an inheritance pattern of 2 duplicate dominant genes. SPSS analysis indicated that the trait of ear tip-barrenness length is of abnormal distribution. Above results mean that: (1) The trait of maize ear tip-barrenness type is controlled by2 duplicate dominant genes; tip-barren type is dominant over tip-barrenless type; (2) the trait of tip-barrenness length is a quantitative character controlled by polygene with major genes expected. |
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| Keywords: | maize ear tip-barrenness type fructification habit dominant inheritance duplicate genes |
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