PDF
Full
Outline
Cassava is one of the three major tuber crops in the world, and is also an important food crop in tropical and subtropical regions. Bacterial blight (CBB) is an important disease for cassava. CCCH (C3H)-type zinc finger proteins are widely present in most of organisms, not only involved in plant growth and development, hormone regulation, but also in response to biotic and abiotic stresses. Although the function of some C3H genes in other plants has been reported, but that in cassava has not been reported. In this study, we analyzed the phylogenetic characteristics, chromosome location, gene structure, promoter cis-acting elements and collinearity of cassava C3H genes. A total of 89 C3H genes (MeC3H01-MeC3H89) were identified in cassava, which were distributed on 18 chromosomes. The phylogenetic tree showed that 89 MeC3H proteins were classified into 4 subfamilies. The C3H gene promoters contains multiple stress, hormones, plant growth and development response elements. 39 pairs of cassava C3H genes had homologous relationships, indicating that these genes may be amplified by replication during evolution. We also analyzed the response expression pattern of C3H genes after cassava was infected by Xanthomonas phaseoli pv. manihotis (Xpm) by transcriptome and real-time quantitative PCR (qPCR) experiments. The expression levels of MeC3H49, MeC3H42 and MeC3H68 were significantly up-regulated, and those of MeC3H35, MeC3H77, MeC3H36, MeC3H31 and MeC3H86 were significantly down-regulated. In summary, we identified the cassava C3H gene family members and their expression patterns in response to Xpm infection, which lays a foundation for further analysis of the function of MeC3Hs.
PDF
57
28
| 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
