Nine complete nucleotide sequences of geminialphasatellites (subfamily Geminialphasatellitinae, family Alphasatellitidae) recovered from the wild Poaceae Sorghum arundinaceum collected in Reunion are described and analyzed. While the helper geminivirus was identified as an isolate of maize streak virus (genus Mastrevirus, family Geminiviridae), the geminialphasatellite genomes were most closely related to, and shared ~63% identity with, clecrusatellites. Even though the geminialphasatellite molecules lack an adenine rich-region, they have the typical size of geminialphasatellites, encode a replication-associated protein in the virion sense, and have probable stem-loop structures at their virion-strand origins of replication. According to the proposed geminialphasatellite species and genus demarcation thresholds (88% and 70% nucleotide identity, respectively), the genomes identified here represent a new species (within a new genus) for which we propose the name “Sorghum mastrevirus-associated alphasatellite” (genus “Sorgasalphasatellite”).

geminialphasatellites（亚家族的九个完整核苷酸序列Geminialphasatellitinae，家庭Alphasatellitidae）从野生禾本科回收高粱茅在留尼汪收集描述和分析。当帮手双生病毒被确定为玉米条纹病毒的分离（属马斯特，家庭联体病毒科），双子星卫星基因组与十字形星族最密切相关，并具有约63％的同一性。即使双子星卫星分子缺少腺嘌呤富集区，它们也具有双子星卫星的典型大小，在病毒体意义上编码与复制相关的蛋白质，并且在其病毒体链复制起点处可能具有茎环结构。根据拟议的双子星卫星物种和属分界阈值（分别为88％和70％核苷酸同一性），此处鉴定的基因组代表了一个新物种（属于一个新属），为此我们提出了“高粱乳腺病毒相关α卫星”的名称（属“ Sorgasalphasatellite ”）。