文献类型：期刊文献

英文题名：Comparative transcriptome analyses reveal candidate genes regulating wood quality in Japanese larch (Larix kaempferi)

作者：He, Shae[1,2] Xie, Yunhui[1,2] Sun, Xiaomei[1,2] Zhang, Shougong[1,2]

通信作者：Zhang, SG[1];Zhang, SG[2]

机构：[1]Chinese Acad Forestry, State Key Lab Tree Genet & Breeding, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, State Forestry Adm, Beijing 100091, Peoples R China

年份：2020

卷号：31

期号：1

起止页码：65-73

外文期刊名：JOURNAL OF FORESTRY RESEARCH

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000511930900006)】；

基金：The work was supported by the Special Fund for Forest Scientific Research in the Public Welfare (201504104) and the Fundamental Research Funds for the Central Non-profit Research Institution of CAF (CAFYBB2017ZA001).

语种：英文

外文关键词：Japanese larch; Wood formation; Transcription regulation; Wood property; Digital gene expression profiling

摘要：We studied the molecular mechanism of the quality traits of wood formation in larch. We used the immature latewood cells of two Japanese larch (Larix kaempferi) clones with significant differences in density and in microfibrillar angle (MFA) as materials to analyze their gene expression profiles. A total of 1735 differentially expressed genes were detected in immature latewood cells of the two clones, among which, 971 were up-regulated and 764 were down-regulated. Digital gene expression profiling analysis revealed that genes encoding transcription factor members NAC66 and R2R3-MYB4, microtubule-associated protein, actin-related protein, cell wall protein members, arabinogalactan protein, Fasciclin-like arabinogalactan protein and glycine-rich protein, and several cell-wall-synthesis genes affected wood density and MFA by regulating latewood formation at transcriptional level. Our study results represent a basis for selection of quality traits and genetic improvement of larch wood.