
浙江农业科学 ›› 2026, Vol. 67 ›› Issue (4): 878-883.DOI: 10.16178/j.issn.0528-9017.20250792
徐鸣锴1(
), 高鑫2, 王东2, 鲁宇童2, 李红涛2, 陈孟起2, 段卫东2, 申洪涛2, 徐世晓1(
)
收稿日期:2025-10-24
出版日期:2026-04-11
发布日期:2026-04-17
通讯作者:
徐世晓
作者简介:徐世晓,E-mail:xushixiao@henau.deu.cn。基金资助:
XU Mingkai1(
), GAO Xin2, WANG Dong2, LU Yutong2, LI Hongtao2, CHEN Mengqi2, DUAN Weidong2, SHEN Hongtao2, XU Shixiao1(
)
Received:2025-10-24
Online:2026-04-11
Published:2026-04-17
Contact:
XU Shixiao
摘要:
本研究以8306野生型株系(WT)、纯合编辑株系(KD)和过表达株系(OE)为材料,探究病毒诱导的基因沉默(virus-induced gene silencing,VIGS)技术沉默NtHD20基因后对各株系的腺毛表型、腺毛密度、腺毛分泌物含量及其关键合成基因表达量变化的影响。结果表明,沉默NtHD20基因后各株系烟草叶面腺毛密度均极显著(p<0.01)增加,腺毛分泌物含量及其关键合成基因表达量均显著(p<0.05)增加。利用VIGS技术沉默NtHD20基因能够促进烟草腺毛发育,并提升西柏三烯醇类物质含量,推测NtHD20基因可能对烟草腺毛发育起负调控作用。本研究为改善烟草腺毛性状提供新的方向。
中图分类号:
徐鸣锴, 高鑫, 王东, 鲁宇童, 李红涛, 陈孟起, 段卫东, 申洪涛, 徐世晓. VIGS介导的NtHD20基因沉默促进烟草腺毛发生[J]. 浙江农业科学, 2026, 67(4): 878-883.
XU Mingkai, GAO Xin, WANG Dong, LU Yutong, LI Hongtao, CHEN Mengqi, DUAN Weidong, SHEN Hongtao, XU Shixiao. VIGS mediated NtHD20 gene silencing promotes tobacco glandular trichome pilogenesis[J]. Journal of Zhejiang Agricultural Sciences, 2026, 67(4): 878-883.
| 基因 | 正向引物序列(5′→3′) | 反向引物序列(5′→3′) |
|---|---|---|
| NtHD20 | AGAGTGTTTCAGTAGTGGCAG | TGTAATCCCAGTTCTCGTGC |
| NtCYP71D16 | ATGCTAGGTGGACTTCACATC | TGCAAAAGCGAGGTCATGAG |
| NtCPS2 | ACTCGTGTCTCTTGGTACT | CACACTCCAATTTAAGCCG |
| NtCycB2 | ATGAGCCGAAGAAATGGAAA | CAACATCAAGCAAACAAGTAC |
| NtMYB123 | TTGGTCGTCCGGACAAAGGC | CCTGGTGCAAGGTGGGAAGA |
表1 荧光定量PCR引物序列
Table 1 Primer sequences for fluorescence quantification PCR
| 基因 | 正向引物序列(5′→3′) | 反向引物序列(5′→3′) |
|---|---|---|
| NtHD20 | AGAGTGTTTCAGTAGTGGCAG | TGTAATCCCAGTTCTCGTGC |
| NtCYP71D16 | ATGCTAGGTGGACTTCACATC | TGCAAAAGCGAGGTCATGAG |
| NtCPS2 | ACTCGTGTCTCTTGGTACT | CACACTCCAATTTAAGCCG |
| NtCycB2 | ATGAGCCGAAGAAATGGAAA | CAACATCAAGCAAACAAGTAC |
| NtMYB123 | TTGGTCGTCCGGACAAAGGC | CCTGGTGCAAGGTGGGAAGA |
图1 不同烟草株系腺毛形态(A)与腺毛密度(B)WT表示8306野生株系,KD表示NtCPS2纯合编辑系,OE表示NtCPS2过表达株系,VIGS表示沉默NtHD20基因,图2~4同。柱上无相同大写字母表示在0.01水平下差异显著。
Fig.1 Glandular trichome phenotype(A)and glandular trichome density(B)of different tobacco lines
图2 烟草腺毛发育相关基因表达量VIGS表示NtHD20基因沉默株系。柱上无相同小写字母表示在0.05水平差异显著,图3~4同。
Fig.2 Relative expression level of genes related to the development of tobacco glandular trichome
| 株系 | 西柏三烯一醇 | 西柏三烯二醇 |
|---|---|---|
| CK WT | 0.09 | 30.71 |
| VIGS WT | 0.15 | 37.66 |
| CK KD | 0.13 | 36.37 |
| VIGS KD | 0.19 | 46.82 |
| CK OE | 0.04 | 20.60 |
| VIGS OE | 0.08 | 25.18 |
表2 西柏三烯醇类物质含量单位:μg·cm-2
Table 2 Content of cembranoids
| 株系 | 西柏三烯一醇 | 西柏三烯二醇 |
|---|---|---|
| CK WT | 0.09 | 30.71 |
| VIGS WT | 0.15 | 37.66 |
| CK KD | 0.13 | 36.37 |
| VIGS KD | 0.19 | 46.82 |
| CK OE | 0.04 | 20.60 |
| VIGS OE | 0.08 | 25.18 |
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