The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.
Deciphering the Diploid Ancestral Genome of the Mesohexaploid Brassica rapa
Open accessAbstract
The genus Brassica includes several important agricultural and horticultural crops. Their current genome structures were shaped by whole-genome triplication followed by extensive diploidization. The availability of several crucifer genome sequences, especially that of Chinese cabbage (Brassica rapa), enables study of the evolution of the mesohexaploid Brassica genomes from their diploid progenitors. We reconstructed three ancestral subgenomes of B. rapa (n = 10) by comparing its whole-genome sequence to ancestral and extant Brassicaceae genomes. All three B. rapa paleogenomes apparently consisted of seven chromosomes, similar to the ancestral translocation Proto-Calepineae Karyotype (tPCK; n = 7), which is the evolutionarily younger variant of the Proto-Calepineae Karyotype (n = 7). Based on comparative analysis of genome sequences or linkage maps of Brassica oleracea, Brassica nigra, radish (Raphanus sativus), and other closely related species, we propose a two-step merging of three tPCK-like genomes to form the hexaploid ancestor of the tribe Brassiceae with 42 chromosomes. Subsequent diversification of the Brassiceae was marked by extensive genome reshuffling and chromosome number reduction mediated by translocation events and followed by loss and/or inactivation of centromeres. Furthermore, via interspecies genome comparison, we refined intervals for seven of the genomic blocks of the Ancestral Crucifer Karyotype (n = 8), thus revising the key reference genome for evolutionary genomics of crucifers.
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Cites
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Cited by
The Brassica oleracea genome reveals the asymmetrical evolution of polyploid genomes
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Self-citationThe plant family brassicaceae: introduction, biology, and importance
Raza, A., Hafeez, M. B., Zahra, N., Shaukat, K., Umbreen, S., Tabassum, J., Charagh, S., Khan, R. S. A., & Hasanuzzaman, M. (2020) · The Plant Family Brassicaceae · doi:10.1007/978-981-15-6345-4_1 · Cited by 61
Metadata
- Authors
- Cheng, F., Mandáková, T., Wu, J., Xie, Q., Lysak, M. A., & Wang, X.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 2013-05-01
- Volume
- 25
- Issue
- 5
- Pages
- 1541-1554
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2122552437
- Cited by
- 353
- References
- 49
- FWCI
- 43.76
- Type
- journal article
- Language
- en
- Open access
- green
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- Cheng, F., Mandáková, T., Wu, J., Xie, Q., Lysak, M. A., & Wang, X. (2013). Deciphering the Diploid Ancestral Genome of the Mesohexaploid Brassica rapa. The Plant Cell. https://doi.org/10.1105/tpc.113.110486
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