논문 (학술지)
Draft genome sequence of wild Prunus yedoensis reveals massive inter-specific hybridization between sympatric flowering cherries
| 등록번호 | RPMS-2019-0190822494 | SCI 구분
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※구분 : SCI(SCIE포함), 비SCI |
SCI |
|---|---|---|---|
| 저자명 (주·공동저자) | Baek Seunghoon; Choi Kyung; Kim Goon-Bo; Yu Hee-Ju; Cho Ara; Jang Hoyeol; Kim Changkyun; Kim Hyuk-Jin; Chang Kae Sun; Kim Joo-Hwan; Mun Jeong-Hwan | ||
| 논문구분 | 국외전문학술지 | 학술지명 | GENOME BIOLOGY |
| ISSN | 1465-6906 | 학술지 출판일자 | 2018-09-17 |
| 학술지 볼륨번호 | 19 | 논문페이지 | 127 ~ - |
| 학술지 임팩트팩터 | 11.908 | 기여율 | 100 % |
| DOI | 10.1186/s13059-018-1497-y | ||
| 초록 | Background: Hybridization is an important evolutionary process that results in increased plant diversity. Flowering Prunus includes popular cherry species that are appreciated worldwide for their flowers. The ornamental characteristics were acquired both naturally and through artificially hybridizing species with heterozygous genomes. Therefore, the genome of hybrid flowering Prunus presents important challenges both in plant genomics and evolutionary biology. Results: We use long reads to sequence and analyze the highly heterozygous genome of wild Prunus yedoensis. The genome assembly covers more than 93% of the gene space, and annotation identified 41,294 protein-coding genes. Comparative analysis of the genome with 16 accessions of 6 related taxa shows that 41% of the genes were assigned into the maternal or paternal state. This indicates that wild P. yedoensis is an F1 hybrid originating from a cross between maternal P. pendula f. ascendens and paternal P. jamasakura, and it can be clearly distinguished from its confusing taxon, Yoshino cherry. A focused analysis of the S-locus haplotypes of closely related taxa distributed in a sympatric natural habitat suggests that reduced restriction of interspecific hybridization due to strong gametophytic self-incompatibility is likely to promote complex hybridization of wild Prunus species and the development of a hybrid swarm. Conclusions: We report the draft genome assembly of a natural hybrid Prunus species using long-read sequencing and sequence phasing. Based on a comprehensive comparative genome analysis with related taxa, it appears that cross-species hybridization in sympatric habitats is an ongoing process that facilitates the diversification of flowering Prunus. | ||
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