文献类型：期刊文献

英文题名：Transcriptome Analysis Reveals the Molecular Mechanisms Associated with Flower Color Formation in Camellia japonica 'Joy Kendrick'

作者：Yu, Suhang[1,2] Liu, Weixin[2] Ni, Sui[1] Li, Jiyuan[2]

第一作者：Yu, Suhang

通信作者：Ni, S[1];Li, JY[2]

机构：[1]Ningbo Univ, Sch Marine Sci, Ningbo 315800, Peoples R China;[2]Chinese Acad Forestry, Res Inst Subtrop Forestry, Key Lab Tree Breeding Zhejiang Prov, Hangzhou 311400, Peoples R China

年份：2023

卷号：14

期号：1

外文期刊名：FORESTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000917616200001)】；

基金：This work was funded by Zhejiang Science and Technology Major Program on Agricultural New Variety Breeding (2021C02071-2, 2021-2025) from Science and Technology Department of Zhejiang Province and National Key R&D Program of China (2020YFD1000500, 2019-2022) from Ministry of Science and Technology of the People's Republic of China.

语种：英文

外文关键词：Camellia japonica; anthocyanin; flower color; transcriptome; phytohormone

摘要：Camellia japonica is a woody flower with high ornamental and economic value used for landscaping and as a pot plant. Floral colors are among the most important ornamental traits of flower plants, particularly multicolored flowers. The C. japonica cultivar 'Joy Kendrick' has multicolored flowers; the corolla is pink with darker red stripes, but the molecular mechanism underlying this trait is unknown. Here, pigment analysis showed that there are more anthocyanins accumulate in red petal regions than in pink areas, which may be key to formation of red stripes. Furthermore, transcriptome analysis revealed that anthocyanin biosynthesis, modification, and transporter genes are highly expressed in red stripes, consistent with the observed anthocyanin accumulation. In addition, many plant hormone signal transduction genes, particularly auxin, may contribute to the regulation of red stripe formation. This study provides broad insights into pigment accumulation and the regulatory mechanisms underlying floral color formation in C. japonica, and lays a foundation for breeding new C. japonica varieties.