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Genome-Wide Identification of NAC Transcription Factor Family in Juglans mandshurica and Their Expression Analysis during the Fruit Development and Ripening

Li, Xiang and Cai, Kewei and Pei, Xiaona and Li, Yan and Hu, Yanbo and Meng, Fanjuan and Song, Xingshun and Tigabu, Mulualem and Ding, Changjun and Zhao, Xiyang (2021). Genome-Wide Identification of NAC Transcription Factor Family in Juglans mandshurica and Their Expression Analysis during the Fruit Development and Ripening. International Journal of Molecular Sciences. 22 :22 , 12414
[Research article]

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Abstract

The NAC (NAM, ATAF and CUC) gene family plays a crucial role in the transcriptional regulation of various biological processes and has been identified and characterized in multiple plant species. However, genome-wide identification of this gene family has not been implemented in Juglans mandshurica, and specific functions of these genes in the development of fruits remain unknown. In this study, we performed genome-wide identification and functional analysis of the NAC gene family during fruit development and identified a total of 114 JmNAC genes in the J. mandshurica genome. Chromosomal location analysis revealed that JmNAC genes were unevenly distributed in 16 chromosomes; the highest numbers were found in chromosomes 2 and 4. Furthermore, according to the homologues of JmNAC genes in Arabidopsis thaliana, a phylogenetic tree was constructed, and the results demonstrated 114 JmNAC genes, which were divided into eight subgroups. Four JmNAC gene pairs were identified as the result of tandem duplicates. Tissue-specific analysis of JmNAC genes during different developmental stages revealed that 39 and 25 JmNAC genes exhibited upregulation during the mature stage in walnut exocarp and embryos, indicating that they may serve key functions in fruit development. Furthermore, 12 upregulated JmNAC genes were common in fruit ripening stage in walnut exocarp and embryos, which demonstrated that these genes were positively correlated with fruit development in J. mandshurica. This study provides new insights into the regulatory functions of JmNAC genes during fruit development in J. mandshurica, thereby improving the understanding of characteristics and evolution of the JmNAC gene family.

Authors/Creators:Li, Xiang and Cai, Kewei and Pei, Xiaona and Li, Yan and Hu, Yanbo and Meng, Fanjuan and Song, Xingshun and Tigabu, Mulualem and Ding, Changjun and Zhao, Xiyang
Title:Genome-Wide Identification of NAC Transcription Factor Family in Juglans mandshurica and Their Expression Analysis during the Fruit Development and Ripening
Series Name/Journal:International Journal of Molecular Sciences
Year of publishing :2021
Volume:22
Number:22
Article number:12414
Number of Pages:18
Publisher:MDPI
ISSN:1661-6596
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Agricultural Science
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Genetics (medical genetics to be 30107 and agricultural genetics to be 40402)
Keywords:Juglans mandshurica, NAC family, genome-wide analysis, walnut exocarp, embryos, expression pattern
URN:NBN:urn:nbn:se:slu:epsilon-p-116802
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-116802
Additional ID:
Type of IDID
DOI10.3390/ijms222212414
Web of Science (WoS)000775478300033
Scopus2-s2.0-85119047189
ID Code:27830
Faculty:S - Faculty of Forest Sciences
Department:(S) > Southern Swedish Forest Research Centre
Deposited By: SLUpub Connector
Deposited On:14 May 2022 04:28
Metadata Last Modified:14 May 2022 05:01

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