Genome-Wide Identification of MYB Transcription Factors and Their Function on Floral Volatile Compounds Biosynthesis in <i>Antirrhinum majus</i> L.

Xiaohui Song; Senbao Shi; Yulai Kong; Fengyi Wang; Shaorong Dong; Chong Ma; Longqing Chen; Zhenglin Qiao

doi:10.3390/horticulturae10020136

Horticulturae (Jan 2024)

Genome-Wide Identification of MYB Transcription Factors and Their Function on Floral Volatile Compounds Biosynthesis in <i>Antirrhinum majus</i> L.

Xiaohui Song,
Senbao Shi,
Yulai Kong,
Fengyi Wang,
Shaorong Dong,
Chong Ma,
Longqing Chen,
Zhenglin Qiao

Affiliations

Xiaohui Song: Yunnan Province Engineering Research Center for Functional Flower Resources and Industrialization, College of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650024, China
Senbao Shi: Yunnan Province Engineering Research Center for Functional Flower Resources and Industrialization, College of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650024, China
Yulai Kong: Yunnan Province Engineering Research Center for Functional Flower Resources and Industrialization, College of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650024, China
Fengyi Wang: Yunnan Province Engineering Research Center for Functional Flower Resources and Industrialization, College of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650024, China
Shaorong Dong: Yunnan Province Engineering Research Center for Functional Flower Resources and Industrialization, College of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650024, China
Chong Ma: Yunnan Province Engineering Research Center for Functional Flower Resources and Industrialization, College of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650024, China
Longqing Chen: Yunnan Province Engineering Research Center for Functional Flower Resources and Industrialization, College of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650024, China
Zhenglin Qiao: Yunnan Province Engineering Research Center for Functional Flower Resources and Industrialization, College of Landscape Architecture and Horticulture Sciences, Southwest Forestry University, Kunming 650024, China

DOI: https://doi.org/10.3390/horticulturae10020136
Journal volume & issue: Vol. 10, no. 2
p. 136

Abstract

Read online

The v-MYB avivan myoblastsis virus oncogene homolog (MYB) family is the largest gene family of the transcription factor in plants, involved in plant growth and development, secondary metabolism and resistance to biotic/abiotic stress. Antirrhinum majus (snapdragon) is an ideal material for studying ornamental traits. Nevertheless, there has been no systematic investigation into the AmMYB family of snapdragons. In this study, we identified a total of 162 members of the AmMYB gene family in snapdragons. Gene structure analysis showed that the AmMYB family within the same subgroup had a similar structure and motifs. Analysis of gene duplication events revealed that the amplification of the AmMYB family was driven by whole-genome duplication (WGD) and dispersed duplication. The analysis of cis-acting elements in the promoter region of AmMYB genes reveals a collaborative involvement of light-responsive growth and development elements, stress resistance elements, and hormone-responsive elements jointly participating in the regulation of the AmMYB gene. Collinearity analysis demonstrates significant functional distinctions between AmMYB and monocotyledonous plants. The classification of AmMYB members results in 3 main subgroups with 36 smaller subgroups. All AmMYB genes are distributed across all eight chromosomes, with no apparent correlation between subfamily distribution and chromosome length. Through phylogenetic analysis and RNA-seq analysis, we have identified 9 R2R3-MYB genes that potentially play a role in the regulation of floral volatile organic compounds (FVOCs) biosynthesis. Their expression patterns were verified by qRT-PCR experiments. This study establishes a robust foundation for further investigations into the functionality of AmMYB genes and their molecular mechanisms underlying FVOC biosynthesis in snapdragons.

Published in Horticulturae

ISSN: 2311-7524 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Agriculture: Plant culture
Website: http://www.mdpi.com/journal/horticulturae

About the journal

Abstract

Keywords