PDF
Full
Outline
NF-YB transcription factors play key regulatory roles in plant growth, development, and stress responses. In this study, HMMER and BLAST were used to identify members of the wheat NF-YB gene family, and their physicochemical properties, phylogenetic relationships, and gene structures were analyzed. Using wheat varieties including Lantian 134, Longzimai 1, and Chang 6878, the expression pattern of TaNF-YB-2 at the seedling stage under drought and salt stress was examined. A total of 10 TaNF-YB family members were identified in the wheat genome and sequentially named TaNF-YB-1 to TaNF-YB-10. These proteins were unstable and acidic. The TaNF-YB members in common wheat showed high similarity to their homologs in spelt wheat, indicating evolutionary conservation. TaNF-YBs genes were mainly located on homologous groups 1 and 4, with five-gene pairs showing collinearity. Cis-element analysis suggested that TaNF-YB gene family are involved in stress responses. Under drought and salt stress, the expression of TaNF-YB-2 increased in both roots and leaves. Under drought stress, the relative expression levels of TaNF-YB-2 in three drought-resistant varieties (Lantian 134, Longzimai 1, and Chang 6878) were consistently significantly higher than in two drought-sensitive varieties (Xikemai 518 and Lanhangxuan 121). Under salt stress, the relative expression levels of TaNF-YB-2 in the three salt-tolerant varieties were significantly higher than those in the salt-sensitive materials—in leaves after 4 h and in roots after 6 h of treatment.
PDF
21
7
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62199257
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
