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C2H2 transcription factors play an important role in plant growth, development and the regulation of secondary metabolism. This article identifies members of the C2H2 gene family in Cannabis sativa L. at the genome level. Chromosomal location and linkage, evolutionary relationships, and identification of conserved motifs was determined from the C. sativa genome and transcriptome data using bioinformatics tools and on-line websites such as TBtools, MEGA software, NCBI, PlantTFDB, ExPASy, HMMSCAN, MEME, WoLFPSORT and PlantCARE. The results show that C. sativa contains 30 members of the C2H2 gene family (named CsC2H2-1-CsC2H2-30) distributed on 9 chromosomes. The encoded proteins range in length from 138 to 635 amino acids, and the theoretical isoelectric points range from 5.85 to 9.52. Molecular weights range from 15 909.48 to 68 445.53 Da. Transcriptome analysis showed that CsC2H2 was differentially expressed in the female flowers, bracts, leaves, and stems of the Diku variety and female flowers of nine different varieties of C. sativa. Quantitative real-time PCR verified that CsC2H2-1, CsC2H2-5, and CsC2H2-19 were significantly expressed in the female flowers and bracts of the Diku variety. This provides a theoretical basis for in-depth study of the function of the C2H2 gene family and the breeding of high-quality C. sativa varieties.
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| 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 |
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