Related Experiment Video
Updated: Dec 26, 2025
RNA Interference in Aquatic Beetles as a Powerful Tool for Manipulating Gene Expression at Specific Developmental Time Points
Published on: May 29, 2020
De novo assembly, transcriptome characterization, and simple sequence repeat marker development in duckweed Lemna
Lili Fu1,2, Zehong Ding1,2, Anuwat Kumpeangkeaw3,4
11Institute of Tropical Bioscience and Biotechnology, MOA Key Laboratory of Tropical Crops Biology and Genetic Resources, Hainan Bioenergy Center, Chinese Academy of Tropical Agricultural Sciences, Xueyuan Road 4, Haikou, 571101 China.
This study developed novel genomic resources for Lemna gibba, a duckweed species with bioenergy potential. Large-scale simple sequence repeat (SSR) markers were created from transcriptome data, aiding future genetic research.
Area of Science:
- Plant Genomics
- Bioinformatics
- Biotechnology
Background:
- Lemna gibba (duckweed) holds significant promise for bioenergy production and wastewater treatment.
- Limited genomic and transcriptomic resources currently hinder genetic diversity and genome mapping research in L. gibba.
Purpose of the Study:
- To generate comprehensive transcriptomic data for Lemna gibba.
- To develop a large set of simple sequence repeat (SSR) markers for genetic analysis.
- To provide valuable resources for future genetic diversity and species relationship studies in Lemnaceae.
Main Methods:
- Generated over 233.5 million clean reads using Illumina paired-end sequencing.
- Performed de novo assembly to identify 131,870 unigenes.
- Identified 19,297 simple sequence repeats (SSRs) and developed 10,292 SSR markers.
Main Results:
- Assembled transcriptome yielded 131,870 unigenes, with 61,622 annotated and 43,319 highly expressed.
- Identified 19,297 SSRs, predominantly dinucleotides (78.4%), with AG/CT being the most frequent motif (69.9%).
- Developed 2,671 high-quality SSR markers, demonstrating PCR amplification and polymorphism in L. gibba genotypes and inter-specific amplifiability.
Conclusions:
- This study presents the first large-scale development and analysis of transcriptome-based SSR markers in Lemna gibba.
- The generated transcriptome and SSR markers serve as crucial resources for advancing genetic research in L. gibba.
- These findings will facilitate genetic diversity assessments and species relationship investigations within the Lemnaceae family.
