首页> 外文期刊>The Journal of Horticultural Science & Biotechnology >Functional male-sterility expressed in eggplant (Solanum melongena L.) containing the cytoplasm of S. kurzii Brace & Prain.
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Functional male-sterility expressed in eggplant (Solanum melongena L.) containing the cytoplasm of S. kurzii Brace & Prain.

机译:在含有 S细胞质的茄子( Solanum melongena L.)中表达的功能性雄性不育。 kurzii Brace&Prain。

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摘要

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 fru
机译:为了发育雄性不育茄子(Solanum melongena L.),使用 S通过连续回交产生了茄子的细胞质替换系。 kurzii Brace&Prain为细胞质供体,而茄子为核供体。叶绿体DNA和线粒体DNA的分析证实,所有回交后代均具有来自 S的细胞质。 kurzii 。在一些BC 1 和BC 2 植物中,以及大多数BC 3 植物中,花药是不裂型的(即,花粉不发布类型)。在所有回交后代中,花粉育性仍然很低。回交后代中每个果实的种子数量连续增加。花药不裂型的功能性雄性不育被认为是由于iS细胞质之间的不相容性。 kurzii 和 S的核基因。 melongena 。目前的雄性不育品系对于降低开发杂交品种的成本和生产无籽茄子具有潜在的价值。

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