S-Space College of Agriculture and Life Sciences (농업생명과학대학) Dept. of Plant Science (식물생산과학부) Journal Papers (저널논문_식물생산과학부)
Revealing biomass heterosis in the allodiploid xBrassicoraphanus, a hybrid between Brassica rapa and Raphanus sativus, through integrated transcriptome and metabolites analysis
|dc.contributor.author||Park, Hye Rang||-|
|dc.contributor.author||Park, Jeong Eun||-|
|dc.contributor.author||Ahn, Jong Hwa||-|
|dc.contributor.author||Lee, Jeong Gu||-|
|dc.contributor.author||Lee, Eun Jin||-|
|dc.contributor.author||Huh, Jin Hoe||-|
|dc.identifier.citation||BMC Plant Biology. 2020 Jun 03;20(1):252||ko_KR|
Heterosis is biologically important but the molecular basis of the phenomenon is poorly understood. We characterized intergeneric hybrids between B. rapa cv. Chiifu and R. sativus cv. WK10039 as an extreme example of heterosis. Taking advantage of clear heterosis phenotypes and the genetic distance between parents, we performed transcriptome and metabolite analysis to decipher the molecular basis of heterosis.
The heterosis was expressed as fresh weight in the field and as inflorescence stem length in the glass house. Flowering time, distributed as a normal segregating population, ranged from the early flowering of one parent to the late flowering of the other, in contrast to the homogeneous flowering time in a typical F1 population, indicating unstable allelic interactions. The transcriptome and metabolome both indicated that sugar metabolism was altered, suggesting that the change in metabolism was linked to the heterosis. Because alleles were not shared between the hybridized genomes, classic models only partly explain this heterosis, indicating that other mechanisms are involved.
The differential expression of genes for primary and secondary metabolism, along with the altered metabolite profiles, suggests that heterosis could involve a change in balance between primary and secondary metabolism.
|dc.description.sponsorship||This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Science and ICT
(2016R1D1A1B03930431 and 2013R1A1A2058687 to GY) and by NextGeneration BioGreen 21 Program (PJ013262 to HJH) Rural Development Administration (RDA), Korea. The funding agencies were not involved in the experimental design, collection and interpretation of data, and in preparation of the manuscript.
|dc.title||Revealing biomass heterosis in the allodiploid xBrassicoraphanus, a hybrid between Brassica rapa and Raphanus sativus, through integrated transcriptome and metabolites analysis||ko_KR|
|dc.citation.journaltitle||BMC Plant Biology||ko_KR|
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