Functional male-sterility expressed in eggplant (Solanum melongena L.) containing the cytoplasm of S. kurzii Brace & Prain
Functional male-sterility expressed in eggplant (Solanum melongena L.) containing the cytoplasm of S. kurzii Brace & Prain
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DOI：
10.1080/14620316.2009.11512486
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发表时间：
2009-01-01
影响因子：
1.9
通讯作者：
Isshiki, Shiro
中科院分区：
文献类型：
--
作者：
Khan, Md. Mizanur Rahim;Isshiki, Shiro
为了开发雄性不育茄子（Solanum melongena L.）的细胞质。以S. kurzii Brace & Prain为胞质供体，茄子为核供体，通过连续回交产生茄子替代系。叶绿体 DNA 和线粒体 DNA 分析证实，所有回交后代均具有库尔兹链霉菌的细胞质。一些 BC1 和 BC2 植物以及大多数 BC3 植物中都有花药。不开裂型（即花粉非释放型）。所有回交后代的花粉和生育力仍然很低。回交后代中每个果实的种子数量连续几代增加。功能性雄性不育。显示出花药不裂型，归因于。 S. kurzii 的细胞质和 S. melongena 的核基因之间的不相容性。现在的。雄性不育系对于降低杂交品种的开发和生产成本具有潜在的价值。无籽茄子果实。
In order, to develop a male-sterile eggplant (Solanum melongena L.), cytoplasm. substitution lines of eggplant were produced by continuous backcrossing using S. kurzii Brace & Prain as cytoplasm donor and eggplant as nucleus donor. Analyses of chloroplast DNA and mitochondrial DNA confirmed that all backcross progenies had the cytoplasm from S. kurzii. Anthers in some BC1 and BC2 plants, and in most BC3 plants were. of the indehiscent-type (i.e., pollen non-release type). Pollen, fertility remained low in all backcross progenies. The number of seeds per fruit in the backcross progenies increased in successive generations. Functional male-sterility of. the anther- indehiscent-type Was shown, to be attributed to. incompatibility between the cytoplasm of S. kurzii and nuclear genes of S. melongena. The present. male-sterile lines are potentially valuable to reduce the cost of developing hybrid cultivars' and to produce. seedless eggplant fruit.