Comparative metabolomics and transcriptomics analyses provide insights into branching changes induced by heterografting in Pinus massoniana seedlings

IF 3.4 2区生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Genomics Pub Date : 2024-06-08 DOI:10.1016/j.ygeno.2024.110882

Feng Xiao , Yayan Zhu , Yao Yang , Xiurong Wang , Xueyan Jian , Yang Zhao

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引用次数: 0

Abstract

The investigation of dwarfing rootstocks for the establishment of high-generation seed orchards is a prospective avenue of research. In this investigation, Pinus massoniana, Pinus yunnanensis var. pygmaea (P. pygmaea), and P. elliottii seedlings were used as rootstocks for grafting with P. massoniana scions. Grafting P. massoniana onto P. pygmaea rootstock resulted in observable phenotypic alterations in lateral branches, apical buds, and needle length. Certain characteristic metabolites of rootstocks, such as fatty acyls, pregnenolones, steroids, and steroid derivatives, were found to be highly expressed in scions after grafting. RNA-seq analysis revealed MYB-related, SBP, and bHLH demonstrating a significant positive correlation, while C2H2 and Orphans exhibited negative correlations with the differential intensity of metabolites related to lipids and lipid-like molecules. This study offers valuable insights for the establishment of rootstock breeding programs.

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代谢组学和转录组比较分析深入揭示了异株嫁接诱导的马尾松幼苗分枝变化。

研究矮化砧木以建立高世代种子果园是一个具有前景的研究方向。在这项研究中，使用了马松（Pinus massoniana）、云南红松（Pinus yunnanensis var. pygmaea，P. pygmaea）和埃利奥特松（P. elliottii）幼苗作为砧木，与马松接穗进行嫁接。将 P. massoniana 嫁接到 P. pygmaea 砧木上可观察到侧枝、顶芽和针叶长度的表型变化。研究发现，砧木的某些特征代谢产物，如脂肪酰、孕烯醇酮、类固醇和类固醇衍生物，在嫁接后的接穗中表达量很高。RNA-seq分析显示，MYB相关、SBP和bHLH表现出显著的正相关性，而C2H2和Orphans与脂质和类脂质分子相关代谢物的不同强度表现出负相关。这项研究为建立砧木育种计划提供了有价值的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Genomics 生物-生物工程与应用微生物

CiteScore

9.60

自引率

2.30%

发文量

260

审稿时长

60 days

期刊介绍： Genomics is a forum for describing the development of genome-scale technologies and their application to all areas of biological investigation. As a journal that has evolved with the field that carries its name, Genomics focuses on the development and application of cutting-edge methods, addressing fundamental questions with potential interest to a wide audience. Our aim is to publish the highest quality research and to provide authors with rapid, fair and accurate review and publication of manuscripts falling within our scope.