| Accession |
PRJCA002346 |
| Title |
SMRT sequencing of the Oryza rufipogon genome reveals the genomic basis of rice adaptation |
| Relevance |
Agricultural |
| Data types |
Whole genome sequencing
|
| Organisms |
Oryza rufipogon
|
| Description |
Asian cultivated rice is believed to have been domesticated from a wild progenitor, Oryza rufipogon, offering promising sources of novel alleles for world rice improvement. Here we first present a high-quality chromosome-scale genome of the typical O. rufipogon. Comparative genomic analyses of O. sativa and its two wild progenitors, O. nivara and O. rufipogon, identified many dispensable genes functionally enriched in reproductive process. We detected millions of genomic variants, of which large-effect mutations could affect agronomically relevant traits. We demonstrate how lineage-specific expansion of gene families may have contributed to the formation of reproduction isolation. We document thousands of genes with signatures of positive selection that are mainly involved in the reproduction and response to biotic- and abiotic stresses. We show that selection pressures may serve as forces to govern substantial genomic alterations that form the genetic basis of rapid evolution of mating and reproductive systems under diverse habitats. |
| Sample scope |
Monoisolate |
| Release date |
2020-03-19 |
| Grants |
| Agency |
program |
Grant ID |
Grant title |
| Key Project of the Natural Science Foundation of Yunnan Province
|
|
201401PC00397
|
|
|
|
| Submitter |
Wei
Li (liweisdau@126.com)
|
| Organization |
South China Agricultural University |
| Submission date |
2020-03-08 |
