Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Nov;50(11):9107-9119.
doi: 10.1007/s11033-023-08799-2. Epub 2023 Sep 25.

Genome-wide identification and analysis of the evolution and expression pattern of the SBP gene family in two Chimonanthus species

Ge-Ge Jiang #  1 , Qian-Qian Wan #  1 , Wei Zou #  1 , Gui-Ting Hu  1 , Li-Yuan Yang  2   3 , Li Zhu  4 , Hui-Juan Ning  5   6   7
Affiliations

Genome-wide identification and analysis of the evolution and expression pattern of the SBP gene family in two Chimonanthus species

Ge-Ge Jiang et al. Mol Biol Rep. 2023 Nov.

Abstract

Background: Chimonanthus praecox and Chimonanthus salicifolius are closely related species that diverged approximately six million years ago. While both C. praecox and C. salicifolius could withstand brief periods of low temperatures of - 15 °C. Their flowering times are different, C. praecox blooms in early spring, whereas C. salicifolius blooms in autumn. The SBP-box (SQUAMOSA promoter-binding protein) is a plant-specific gene family that plays a crucial vital role in regulating plant flowering. Although extensively studied in various plants, the SBP gene family remains uncharacterized in Calycanthaceae.

Methods and results: We conducted genome-wide identification of SBP genes in both C. praecox and C. salicifolius and comprehensively characterized the chromosomal localization, gene structure, conserved motifs, and domains of the identified SBP genes. In total, 15 and 18 SBP genes were identified in C. praecox and C. salicifolius, respectively. According to phylogenetic analysis, the SBP genes from Arabidopsis, C. praecox, and C. salicifolius were clustered into eight groups. Analysis of the gene structure and conserved protein motifs showed that SBP proteins of the same subfamily have similar motif structures. The expression patterns of SBP genes were analyzed using transcriptome data. The results revealed that more than half of the genes exhibited lower expression levels in leaves than in flowers, suggesting their potential involvement in the flower development process and may be linked to the winter and autumn flowering of C. praecox and C. salicifolius.

Conclusion: Thirty-three SBPs were identified in C. praecox and C. salicifolius. The evolutionary characteristics and expression patterns were examined in this study. These results provide valuable information to elucidate the evolutionary relationships of the SBP family and help determine the functional characteristics of the SBP genes in subsequent studies.

Keywords: Chimonanthus praecox; Chimonanthus salicifolius; Comparative analysis; Plant flowering; SBP.

PubMed Disclaimer

Similar articles

See all similar articles

References

    1. Zhou Q, Zhang S, Chen F, Liu B, Wu L, Li F, Zhang J, Bao M, Liu G (2018) Genome-wide identification and characterization of the SBP-box gene family in Petunia. BMC Genom 19(1):193. https://doi.org/10.1186/s12864-018-4537-91 - DOI
    1. Loconte H, Stevenson DW (1991) (1991) Cladistics of the magnoliidae. Cladistics 7(3):267–296 - DOI - PubMed
    1. Lv Q, Qiu J, Liu J, Li Z, Zhang W, Wang Q et al (2020) (2020) The Chimonanthus salicifolius genome provides insight into magnoliid evolution and flavonoid biosynthesis. Plant J 103(5):1910–1923. https://doi.org/10.1111/tpj.14874 - DOI - PubMed
    1. Crepet WL, Nixon KC, Gandolfo MA (2005) An extinct calycanthoid taxon, Jerseyanthus calycanthoides, from the late cretaceous of New Jersey. Am J Bot 92(9):1475–1485. https://doi.org/10.3732/ajb.92.9.1475 - DOI - PubMed
    1. Chen J, Hao Z, Guang X, Zhao C, Wang P, Xue L et al (2019) (2019) Liriodendron genome sheds light on angiosperm phylogeny and species-pair differentiation. Nat Plants 5(1):18–25. https://doi.org/10.1038/s41477-018-0323-6 - DOI - PubMed

LinkOut - more resources