Comparative transcriptome and hormone analyses of roots in apple among three rootstocks with different rooting abilities.

ABSTRACT:

Background

Root plays an important role in the growth and development of fruit trees; however, the molecular mechanisms behind the differences among rootstock varie-ties remain unclear.

Methods

This study examined the effects of different rootstocks on root structure and the endogenous hormone content of 1-year old apple seedlings in combinations of Tianhong 2 (T2)/Malus robusta (HT), T2/G935, and T2/Jizhen 2 (J2).

Results

The results showed that the T2/HT treatment had greater root length, surface area, volume, average diameter, tips and forks, followed by G935 and J2. In T2/HT leaves and roots, the indole-3-acetic acid (IAA) and gibberellins (GA₃) levels were highest, and the abscisic acid (ABA) levels were the lowest. A root transcriptome analysis

SUBMITTER: Li Z 

PROVIDER: S-EPMC11485133 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature