[1]杨海峰,薄高峰,于兴旺,等. 沙柳SpsNAC042基因克隆及逆境表达分析[J].西北林学院学报,2021,36(5):11-17.[doi:10.3969/j.issn.1001-7461.2021.05.02]
　YANG Hai-feng,BO Gao-feng,YU Xing-wang,et al. Cloning of SpsNAC042 and Its Expression Analysis under Stress in Salix psammophila[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2021,36(5):11-17.[doi:10.3969/j.issn.1001-7461.2021.05.02]
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 沙柳SpsNAC042基因克隆及逆境表达分析()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第36卷
期数:
2021年第5期
页码:
11-17
栏目:
出版日期:
2021-09-30

文章信息/Info

Title:
 Cloning of SpsNAC042 and Its Expression Analysis under Stress in Salix psammophila
文章编号:
1001-7461(2021)05-0011-07
作者:
 杨海峰; 薄高峰; 于兴旺; 李安玉; 张鑫; 郝璞; 刘璐
 （内蒙古农业大学 林学院，内蒙古 呼和浩特 010018）
Author(s):
 YANG Hai-feng; BO Gao-feng; YU Xing-wang; LI An-yu; ZHANG Xin; HAO Pu; LIU-Lu
(Forestry College,Inner Mongolia Agricultural University,Huhhot,Inner Mongolia 010018,China)
关键词:
 ; 沙柳; NAC; 基因克隆; 逆境表达
Keywords:
 ; Salix psammophila;  NAC;  gene cloning;  stress
分类号:
S718.46
DOI:
10.3969/j.issn.1001-7461.2021.05.02
文献标志码:
A
摘要:
 采用同源克隆的方法获得沙柳SpsNAC042基因，通过生物信息学分析、组织特异性表达分析、逆境表达分析。结果表明，SpsNAC042基因的开放阅读框序列长度为900 bp，共编码299个氨基酸，测定为亲水性不稳定蛋白。组织特异性表达分析得出花中的基因相对表达量最高，幼叶、茎9~15节间、根、成熟叶的表达量依次降低，茎尖的表达量最低。SpsNAC042基因在干旱处理下与对照组相比整体呈增长趋势，并在8 h处达到最高；在低温处理下，基因表达量迅速积累，在2 h处达到最高，然后维持在较低水平表达；在盐和高温处理下SpsNAC042基因缓慢积累，后期迅速增高，最终在24 h处达到最高。研究表明SpsNAC042基因参与逆境应答反应，为深入开展沙柳NAC基因对生物和非生物胁迫应答研究提供了参考价值。
Abstract:
 In this study,SpsNAC042 gene of Salix psammophila was obtained by homologous cloning method.The analyses of bioinformatics,tissue-specific expression,and stress expression indicated that the open reading frame (ORF) sequence of the gene was 900 bp,encoded with 299 amino acids.It was identified as an unstable protein with hydrophilic property.The tissue specific expression analysis showed that the relative expression of the gene in flowers was the highest,and decreased systematically in young leaf,the 9-15th internode in stem,root and mature leaf,the lowest expression was in the shoot apex.The expression increased under drought stress compared with the control group,and reached the highest level at 8 hours.Under low temperature treatment,the gene expression rapidly accumulated and reached the highest level in 2 hours after the treatment,and remained at a low level.SpsNAC042 gene accumulated slowly under salt and high temperature treatments,and increased rapidly in the late stage,finally reached its maximum after 24 hours.The results showed that SpsNAC042 gene was involved in stress response.This study provides a reference for further research on the biological and abiotic stress responses of S.psammophila NAC gene.

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备注/Memo

备注/Memo:
 收稿日期：2020-11-05修回日期：2020-12-28
基金项目：国家自然科学基金（31660216）；国家科技重大专项课题（2018ZX08020002-005-005）；内蒙古自治区科技计划项目（2021GG0075，2019GG004）。
作者简介：杨海峰，博士，副教授。研究方向：林木基因组学及林木基因工程。E-mail:yang_hf888@163.com
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