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10.3390/genes11020228
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Article

Comparative Transcriptome Analysis Reveals Stem Secondary Growth of Grafted Rosa rugosa ‘Rosea’ Scion and R. multiflora ‘Innermis’ Rootstock

by
Jing-shuang Sun
1,
Rui-yang Hu
1,
Fu-ling Lv
1,
Yan-fang Yang
2,
Zhi-min Tang
1,
Guang-shun Zheng
1,
Jian-bo Li
1,
Hua Tian
1,
Yan Xu
1 and
Shao-feng Li
1,*
1
Experimental Center of Forestry in North China, Chinese Academy of Forestry, Beijing 102300, China
2
Research Institute of Forestry, Chinese Academy of Forestry, Beijing 102300, China
*
Author to whom correspondence should be addressed.
Genes 2020, 11(2), 228; https://doi.org/10.3390/genes11020228
Submission received: 21 December 2019 / Revised: 19 February 2020 / Accepted: 19 February 2020 / Published: 21 February 2020
(This article belongs to the Section Plant Genetics and Genomics)
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Abstract

Grafted plant is a chimeric organism formed by the connection of scion and rootstock through stems, so stem growth and development become one of the important factors to affect grafted plant state. However, information regarding the molecular responses of stems secondary growth after grafting is limited. A grafted Rosa plant, with R. rugosa ‘Rosea’ as the scion (Rr_scion) grafted onto R. multiflora ‘Innermis’ as the stock (Rm_stock), has been shown to significantly improve stem thickness. To elucidate the molecular mechanisms of stem secondary growth in grafted plant, a genome-wide transcription analysis was performed using an RNA sequence (RNA-seq) method between the scion and rootstock. Comparing ungrafted R. rugosa ‘Rosea’ (Rr) and R. multiflora ‘Innermis’ (Rm) plants, there were much more differentially expressed genes (DEGs) identified in Rr_scion (6887) than Rm_stock (229). Functional annotations revealed that DEGs in Rr_scion are involved in two Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways: the phenylpropanoid biosynthesis metabolism and plant hormone signal transduction, whereas DEGs in Rm_stock were associated with starch and sucrose metabolism pathway. Moreover, different kinds of signal transduction-related DEGs, e.g., receptor-like serine/threonine protein kinases (RLKs), transcription factor (TF), and transporters, were identified and could affect the stem secondary growth of both the scion and rootstock. This work provided new information regarding the underlying molecular mechanism between scion and rootstock after grafting.
Keywords: RNA-sequencing; Rosa; grafting; stem; scion; rootstock RNA-sequencing; Rosa; grafting; stem; scion; rootstock

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MDPI and ACS Style

Sun, J.-s.; Hu, R.-y.; Lv, F.-l.; Yang, Y.-f.; Tang, Z.-m.; Zheng, G.-s.; Li, J.-b.; Tian, H.; Xu, Y.; Li, S.-f. Comparative Transcriptome Analysis Reveals Stem Secondary Growth of Grafted Rosa rugosa ‘Rosea’ Scion and R. multiflora ‘Innermis’ Rootstock. Genes 2020, 11, 228. https://doi.org/10.3390/genes11020228

AMA Style

Sun J-s, Hu R-y, Lv F-l, Yang Y-f, Tang Z-m, Zheng G-s, Li J-b, Tian H, Xu Y, Li S-f. Comparative Transcriptome Analysis Reveals Stem Secondary Growth of Grafted Rosa rugosa ‘Rosea’ Scion and R. multiflora ‘Innermis’ Rootstock. Genes. 2020; 11(2):228. https://doi.org/10.3390/genes11020228

Chicago/Turabian Style

Sun, Jing-shuang, Rui-yang Hu, Fu-ling Lv, Yan-fang Yang, Zhi-min Tang, Guang-shun Zheng, Jian-bo Li, Hua Tian, Yan Xu, and Shao-feng Li. 2020. "Comparative Transcriptome Analysis Reveals Stem Secondary Growth of Grafted Rosa rugosa ‘Rosea’ Scion and R. multiflora ‘Innermis’ Rootstock" Genes 11, no. 2: 228. https://doi.org/10.3390/genes11020228

APA Style

Sun, J.-s., Hu, R.-y., Lv, F.-l., Yang, Y.-f., Tang, Z.-m., Zheng, G.-s., Li, J.-b., Tian, H., Xu, Y., & Li, S.-f. (2020). Comparative Transcriptome Analysis Reveals Stem Secondary Growth of Grafted Rosa rugosa ‘Rosea’ Scion and R. multiflora ‘Innermis’ Rootstock. Genes, 11(2), 228. https://doi.org/10.3390/genes11020228

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