The Potential Role of Genic-SSRs in Driving Ecological Adaptation Diversity in Plants

Overview

Journal Int J Mol Sci

Publisher MDPI

Specialties Biochemistry
Chemistry
Molecular Biology

Date 2024 Feb 24

PMID 38396759

Authors

Qinglang Wang

Xinger Chen

Yue Meng

Miaomiao Niu

Yuanyuan Jia

Lei Huang

Wenhong Ma

Cunzhu Liang

Zhiyong Li

Liqing Zhao

Zhenhua Dang

Affiliations

Soon will be listed here.

Abstract

, a xerophytic shrub genus widely distributed in northern China, exhibits distinctive geographical substitution patterns and ecological adaptation diversity. This study employed transcriptome sequencing technology to investigate 12 species, aiming to explore genic-SSR variations in the transcriptome and identify their role as a driving force for environmental adaptation within the genus. A total of 3666 polymorphic genic-SSRs were identified across different species. The impact of these variations on the expression of related genes was analyzed, revealing a significant linear correlation ( < 0.05) between the length variation of 264 polymorphic genic-SSRs and the expression of associated genes. Additionally, 2424 polymorphic genic-SSRs were located in differentially expressed genes among species. Through weighted gene co-expression network analysis, the expressions of these genes were correlated with 19 climatic factors and 16 plant functional traits in various habitats. This approach facilitated the identification of biological processes associated with habitat adaptations in the studied species. Fifty-five core genes related to functional traits and climatic factors were identified, including various transcription factors such as MYB, TCP, ARF, and structural proteins like HSP90, elongation factor TS, and HECT. The roles of these genes in the ecological adaptation diversity of were discussed. Our study identified specific genomic components and genes in plants responsive to heterogeneous habitats. The results contribute to advancements in the molecular understanding of their ecological adaptation, lay a foundation for the conservation and development of germplasm resources, and provide a scientific basis for plant adaptation to global climate change.

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