The PIN gene family in relic plant L. chinense: Genome-wide identification and gene expression profiling in different organizations and abiotic stress responses

• DOI: 10.1016/j.plaphy.2021.03.030
• Publication Date: 2021-03-20T04:04:45Z
• Authors: Lingfeng Hu; Pengkai Wang; Xiaofei Long; Weihuang Wu; Jiaji Zhang; Yan Pan; Tielong Cheng; Jisen Shi; Jinhui Chen
• Keywords: Petal; Lateral root

The auxin efflux carrier PIN-FORMED (PIN) proteins are required for the polar transport of between cells through their asymmetric distribution on plasma membrane, thus mediating differential in plants, finally, affecting plant growth and developmental processes. In this study, 11 LcPIN genes were identified. structural characteristics evolutionary status thoroughly investigated interpreted combining physicochemical property analysis, gene structure chromosomal localization, etc. Multi-species protein sequence analysis showed that angiosperm PIN have strong purification options some functional sites predicted about polarity, trafficking activity L. chinense. Further qRT-PCR transcriptome data indicated long LcPINs highly expressed from globular embryo to plantlet, LcPIN6a started upregulated cotyledon embryo. LcPIN3 both during development stamens petals expression LcPIN2 is related root elongation, suggesting they may play an important role these Experiment indicates LcPIN5 LcPIN8 might a key Liriodendron stems leaves under abiotic stress. Analyzed response stress as basis uncovering biological adaption adverse environments. This study provides foundation further genetic analyses.