在菜豆（Phaseolus vulgaris L.）一个可育材料品系中鉴定出一种导致不育的细胞质
Identification of a sterility-inducing cytoplasm in a fertile accession line of Phaseolus vulgaris L.
作者信息
Mackenzie S A
机构信息
Department of Agronomy, Purdue University, West Lafayette, Indiana 47907.
出版信息
Genetics. 1991 Feb;127(2):411-6. doi: 10.1093/genetics/127.2.411.
Previous investigations into the genetic mechanism of fertility restoration in cytoplasmic male sterile Phaseolus vulgaris suggested that this is a particularly interesting system for the study of nuclear-mitochondrial interactions. This study was conducted to investigate the nature of nuclear-mitochondrial compatibility in fertile accession line G08063, the reported progenitor to the cytoplasmic male sterile line. Results from genetic analysis indicated that fertile line G08063 carried a sterility-inducing cytoplasm with a fertility restoring nuclear genotype. Mitochondrial DNA analysis indicated that the mechanism of fertility restoration by line G08063 was different from that conditioned by Fr, a previously described restorer gene. A mitochondrial DNA sequence associated with sterility and lost upon fertility restoration by nuclear gene Fr was present in the mitochondrial genome of fertile line G08063; this sequence was not carried within the mitochondrial genome of any other P. vulgaris accession line tested.
先前对细胞质雄性不育菜豆育性恢复遗传机制的研究表明，这是一个研究核 - 线粒体相互作用的特别有趣的系统。本研究旨在调查可育材料系G08063（据报道是细胞质雄性不育系的祖先）中核 - 线粒体兼容性的本质。遗传分析结果表明，可育系G08063携带诱导不育的细胞质和恢复育性的核基因型。线粒体DNA分析表明，G08063系的育性恢复机制与先前描述的恢复基因Fr所调控的机制不同。在可育系G08063的线粒体基因组中存在一个与不育相关且在核基因Fr恢复育性时丢失的线粒体DNA序列；该序列在测试的任何其他菜豆材料系的线粒体基因组中均未携带。
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