Open Access
ARTICLE
Genome-wide identification and expression analysis of Aux/IAA gene family in strawberry (Fragaria vesca)
LIYAN SU1,2,#, HONG YU3,#, JIUDONG ZHANG1, XIAOHONG ZHAO1, XUAN LIU1, QIANG LI1,4,*
1 School of Biological and Environmental Engineering, Xi’an University, Xi’an, 710065, China
2 Rural Science and Technology Development Center, Xi’an, 710054, China
3 School of Basic Medical Sciences, Southwest Medical University, Luzhou, 646000, China
4 Citrus Research Institute, Southwest University-Chinese Academy of Agricultural Sciences, Chongqing, 400712, China
* Address correspondence to: Qiang Li,
# These authors contributed equally to this work
BIOCELL 2021, 45(4), 1153-1166. https://doi.org/10.32604/biocell.2021.014499
Received 02 October 2020; Accepted 14 January 2021; Issue published 22 April 2021
Abstract
Auxin signaling and its components (Auxin/Indole-3-Acetic Acid (Aux/IAA)) are critical for plant growth and
development. Here, we performed a genome-wide annotation and identified twenty-one Aux/IAA genes in strawberry
(
Fragaria vesca). Most
FveIAAs were located on chromosomes 1, 2, 4, 5, and 6, while no
FveIAAs were found in
chromosomes 3 and 7. Phylogenetic analysis divided these genes into nine subfamilies. Most FveIAAs contained the
DNA-binding and Aux/IAA domains, as well as motifs I–IV. There were 2–6 exons in the
FveIAA genes based on the
gene structure analysis. Also, we found that four pairs of
FveIAA genes underwent segment duplications. Moreover,
four pairs of orthologous genes were observed between strawberry and
Arabidopsis. Cis-element analysis in the
promoter region indicated that
FveIAAs may be involved in light, phytohormones, stress responses, and growth
processes. Prediction of protein-protein interaction revealed that 17 of 21 FveIAA proteins were involved in the
auxin-related signaling pathways. Additionally,
FveIAAs showed tissue-specific expression and responded to IAA
treatment. Thus, this systematic annotation of the
FveIAA family would provide a fundamental basis for further
functional and evolutionary analysis and to understanding the role of
FveIAAs in strawberry growth and development.
Keywords
Supplementary Material
Supplementary Material File
Cite This Article
SU, L., YU, H., ZHANG, J., ZHAO, X., LIU, X. et al. (2021). Genome-wide identification and expression analysis of
Aux/IAA gene family in strawberry (
Fragaria vesca).
BIOCELL, 45(4), 1153–1166. https://doi.org/10.32604/biocell.2021.014499