Nucleotide sequence of a 28-kbp portion of rice mitochondrial DNA: the existence of many sequences that correspond to parts of mitochondrial genes in intergenic regions.
Nucleotide sequence of a 28-kbp portion of rice mitochondrial DNA: the existence of many sequences that correspond to parts of mitochondrial genes in intergenic regions.
复制标题
水稻线粒体 DNA 28 kbp 部分的核苷酸序列：存在与基因间区域线粒体基因部分相对应的许多序列。
作者：
H. Itadani;T. Wakasugi;M. Sugita;M. Sugiura;M. Nakazono;A. Hirai
测定了水稻线粒体DNA的一个27，588-bp区域的核苷酸序列。该序列包含编码起始甲硫氨酸tRNA（trnfM）、NADH脱氢酶复合物的亚基III（nad 3）和IV（nad 4）以及核糖体蛋白S3（rps 3）、S12（rps 12）和L16（rpl 16）的推定基因。还存在含有与rps 2和atpA部分同源的序列的开放阅读框。除了这些区域之外，还有许多短序列与来自水稻或其他植物的线粒体DNA片段具有同源性。这些序列可能是基因组多次重排的残余，它们的存在似乎可以部分解释高等植物线粒体基因组的大尺寸。
The nucleotide sequence of a 27,588-bp region of rice mitochondrial DNA was determined. This sequence contains putative genes that encode initiator methionine tRNA (trnfM), subunits III (nad3) and IV (nad4) of the NADH dehydrogenase complex, and ribosomal proteins S3 (rps3), S12 (rps12) and L16 (rpl16). An open reading frame that contains sequences homologous to parts of rps2 and atpA is also present. In addition to these regions, there are many short sequences with homology to fragments of mitochondrial DNAs from rice or other plants. These sequences may be remnants of multiple rearrangements of the genome and their presence seems to explain, in part, the large sizes of the mitochondrial genomes of higher plants.