論文 - 詳細
| RRC ID | 58946 |
|---|---|
| 著者 | Furuyama M, Nagaoka H, Sato T, Sakaizumi M. |
| タイトル | Centromere localization in medaka fish based on half-tetrad analysis. |
| ジャーナル | Genes Genet Syst |
| Abstract |
Gene-centromere (G-C) mapping provides insight into vertebrate genome composition, structure and evolution. Although medaka fish are important experimental animals, no genome-wide G-C map of medaka has been constructed. In this study, we used 112 interspecific triploid hybrids and 152 DNA markers to make G-C maps of all 24 linkage groups (LGs). Under the assumption of 50% interference, 24 centromeres were localized onto all corresponding medaka LGs. Comparison with 21 centromere positions deduced from putative centromeric repeats revealed that 19 were localized inside the centromeric regions of the G-C maps, whereas two were not. Based on the centromere positions indicated in the G-C maps and those of centromeric repeats on each LG, we classified chromosomes as either biarmed or monoarmed; n = 24 = 10 metacentrics/submetacentrics + 14 subtelocentrics/acrocentrics, which is consistent with the results of previous karyological reports. This study helps to elucidate genome evolution mechanisms, and integrates physical and genetic maps with karyological information of medaka. |
| 巻・号 | 94(4) |
| ページ | 159-165 |
| 公開日 | 2019-10-30 |
| DOI | 10.1266/ggs.19-00013 |
| PMID | 31406024 |
| MeSH | Animals Centromere / genetics* Chromosome Mapping Genetic Linkage Genome / genetics Hybridization, Genetic Microsatellite Repeats / genetics* Oryzias / genetics* Polyploidy Triploidy |
| IF | 0.917 |
| 引用数 | 0 |
| オルトメトリクス指標 |
オルトメトリクス指標項目
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| 最多言及媒体 | X(Twitter) |
| 各媒体での言及数の合計 | 1 |
| 過去6か月間でのオルトメトリクス指標の変動値 | 0.0 |
| リソース情報 | |
| メダカ | Hd-rRII1 (IB178) HNI-II (IB176) O. luzonensis (RS270） |