Integrated Transcriptome and Proteome Analysis Revealed the Regulatory Mechanism of Hypocotyl Elongation in Pakchoi

Hypocotyl length is a critical determinant for the efficiency of mechanical harvesting in pakchoi production, but the knowledge on the molecular regulation of hypocotyl growth is very limited. Here, we report a spontaneous mutant of pakchoi, lhy7.1, and identified its characteristics. We found that it has an elongated hypocotyl phenotype compared to the wild type caused by the longitudinal growth of hypocotyl cells. Different light quality treatments, transcriptome, and proteomic analyses were performed to reveal the molecular mechanisms of hypocotyl elongation. The data showed that the hypocotyl length of lhy7.1 was significantly longer than that of WT under red, blue, and white lights but there was no significant difference under dark conditions. Furthermore, we used transcriptome and label-free proteome analyses to investigate differences in gene and protein expression levels between lhy7.1 and WT. At the transcript level, 4568 differentially expressed genes (DEGs) were identified, which were mainly enriched in "plant hormone signal transduction", "photosynthesis", "photosynthesis-antenna proteins", and "carbon fixation in photosynthetic organisms" pathways. At the protein level, 1007 differentially expressed proteins (DEPs) were identified and were mainly enriched in photosynthesis-related pathways. The comprehensive transcriptome and proteome analyses revealed a regulatory network of hypocotyl elongation involving plant hormone signal transduction and photosynthesis-related pathways. The findings of this study help elucidate the regulatory mechanisms of hypocotyl elongation in lhy7.1.

Medienart:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:24

Enthalten in:

International journal of molecular sciences - 24(2023), 18 vom: 07. Sept.

Sprache:

Englisch

Beteiligte Personen:

Li, Xiaofeng [VerfasserIn]
Xi, Dandan [VerfasserIn]
Gao, Lu [VerfasserIn]
Zhu, Hongfang [VerfasserIn]
Yang, Xiuke [VerfasserIn]
Song, Xiaoming [VerfasserIn]
Zhang, Changwei [VerfasserIn]
Miao, Liming [VerfasserIn]
Zhang, Dingyu [VerfasserIn]
Zhang, Zhaohui [VerfasserIn]
Hou, Xilin [VerfasserIn]
Zhu, Yuying [VerfasserIn]
Wei, Min [VerfasserIn]

Links:

Volltext

Themen:

Hormone
Hypocotyl
Journal Article
Pakchoi
Photosynthesis
Plant Growth Regulators
Proteome
Transcriptome

Anmerkungen:

Date Completed 29.09.2023

Date Revised 03.10.2023

published: Electronic

Citation Status MEDLINE

doi:

10.3390/ijms241813808

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM362583781