Genome-wide identification of the NAC gene family and its functional analysis in Liriodendron

© 2023. BioMed Central Ltd., part of Springer Nature..

As one of the largest plant specific transcription factor families, NAC family members play an important role in plant growth, development and stress resistance. To investigate the function of NAC transcription factors during abiotic stress, as well as during somatic embryogenesis, we identified and characterized the NAC gene family in Liriodendron chinense. We found that most LcNAC members contain more than three exons, with a relatively conserved gene and motif structure, especially at the N-terminus. Interspecies collinearity analysis revealed a closer relationship between the L. chinense NACs and the P. trichocarpa NACs. We analyzed the expression of LcNAC in different tissues and under three abiotic stresses. We found that 12 genes were highly expressed during the ES3 and ES4 stages of somatic embryos, suggesting that they are involved in the development of somatic embryos. 6 LcNAC genes are highly expressed in flower organs. The expression pattern analysis of LcNACs based on transcriptome data and RT-qPCR obtained from L. chinense leaves indicated differential expression responses to drought, cold, and heat stress. Genes in the NAM subfamily expressed differently during abiotic stress, and LcNAC6/18/41/65 might be the key genes in response to abiotic stress. LcNAC6/18/41/65 were cloned and transiently transformed into Liriodendron protoplasts, where LcNAC18/65 was localized in cytoplasm and nucleus, and LcNAC6/41 was localized only in nucleus. Overall, our findings suggest a role of the NAC gene family during environmental stresses in L. chinense. This research provides a basis for further study of NAC genes in Liriodendron chinense.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:23

Enthalten in:

BMC plant biology - 23(2023), 1 vom: 08. Sept., Seite 415

Sprache:

Englisch

Beteiligte Personen:

Liu, Siqin [VerfasserIn]
Guan, Yuanlin [VerfasserIn]
Weng, Yuhao [VerfasserIn]
Liao, Bojun [VerfasserIn]
Tong, Lu [VerfasserIn]
Hao, Zhaodong [VerfasserIn]
Chen, Jinhui [VerfasserIn]
Shi, Jisen [VerfasserIn]
Cheng, Tielong [VerfasserIn]

Links:

Volltext

Themen:

Abiotic stress
Acetylcysteine
Expression pattern
Journal Article
Liriodendron chinense
N-acetylcysteine lysinate
NAC transcription factor
Somatic embryo development
WYQ7N0BPYC

Anmerkungen:

Date Completed 11.09.2023

Date Revised 21.11.2023

published: Electronic

Citation Status MEDLINE

doi:

10.1186/s12870-023-04415-4

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM361820828