{"title":"Oryza australiensis Domin与O. ridleyi Hook的交叉杂交","authors":"T. Katayama","doi":"10.1266/JJG.67.415","DOIUrl":null,"url":null,"abstract":"One hybrid embryo of intersectional origin between Oryza australiensis Domin (W008, 2n=24) and O. ridleyi Hook. (W0001, 2n=48) was successfully obtained. The Fl hybrid had the expected chromosome number of 36 in the somatic cells. The average of meiotic chromosome pairing was 0.24II+34.27I. Meiotic irregularities, such as bridge, laggards and unequal separation of univalents were observed at almost all PMCs. This analysis leads to the conclusion that the two genomes of O. ridleyi differ from the EE genome of O. australiensis.","PeriodicalId":22578,"journal":{"name":"The Japanese Journal of Genetics","volume":"46 1","pages":"415-417"},"PeriodicalIF":0.0000,"publicationDate":"1992-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Intersectional hybridization between Oryza australiensis Domin and O. ridleyi Hook\",\"authors\":\"T. Katayama\",\"doi\":\"10.1266/JJG.67.415\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"One hybrid embryo of intersectional origin between Oryza australiensis Domin (W008, 2n=24) and O. ridleyi Hook. (W0001, 2n=48) was successfully obtained. The Fl hybrid had the expected chromosome number of 36 in the somatic cells. The average of meiotic chromosome pairing was 0.24II+34.27I. Meiotic irregularities, such as bridge, laggards and unequal separation of univalents were observed at almost all PMCs. This analysis leads to the conclusion that the two genomes of O. ridleyi differ from the EE genome of O. australiensis.\",\"PeriodicalId\":22578,\"journal\":{\"name\":\"The Japanese Journal of Genetics\",\"volume\":\"46 1\",\"pages\":\"415-417\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-10-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The Japanese Journal of Genetics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1266/JJG.67.415\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The Japanese Journal of Genetics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1266/JJG.67.415","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
摘要
Oryza australiensis Domin (W008, 2n=24)与O. ridleyi Hook杂交起源的一个杂种胚胎。(W0001, 2n=48)。该杂种体细胞染色体数达到预期的36条。减数分裂染色体配对的平均值为0.24 i +34.27I。减数分裂不规则，如桥，滞后和不均匀分离的单价几乎在所有的pmc观察。这一分析得出结论，南稻稻的两个基因组与南稻稻的EE基因组不同。
Intersectional hybridization between Oryza australiensis Domin and O. ridleyi Hook
One hybrid embryo of intersectional origin between Oryza australiensis Domin (W008, 2n=24) and O. ridleyi Hook. (W0001, 2n=48) was successfully obtained. The Fl hybrid had the expected chromosome number of 36 in the somatic cells. The average of meiotic chromosome pairing was 0.24II+34.27I. Meiotic irregularities, such as bridge, laggards and unequal separation of univalents were observed at almost all PMCs. This analysis leads to the conclusion that the two genomes of O. ridleyi differ from the EE genome of O. australiensis.
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