Transcriptome analysis during fruit developmental stages in durian (Durio zibethinus Murr.) var. D24

Area of Science:

• Plant genetics
• Molecular biology
• Fruit development

Background:

• Durian (Durio zibethinus Murr.) is renowned for its distinctive aroma.
• Understanding gene expression during fruit development is crucial for trait improvement.

Purpose of the Study:

• To analyze the Durian fruit transcriptome across three developmental stages.
• To identify differentially expressed genes (DEGs) related to fruit ripening and development.
• To provide a foundation for Durian fruit trait improvement.

Main Methods:

• Transcriptome sequencing using the Illumina HiSeq platform.
• Analysis of sequence data using four different mapping aligners and statistical methods (CLC Genomic Workbench, HISAT2+DESeq2, Tophat+Cufflinks, HISAT2+edgeR).
• Studied three developmental stages: early (90 days post-anthesis), mature (120 DPA), and ripen (127 DPA).

Main Results:

• Over 110 million clean reads were mapped to the Durian genome.
• Identified 19,976 to 24,351 differentially expressed genes (DEGs) between 90 and 127 days post-anthesis.
• Genes with increased expression during ripening were linked to cofactor/vitamin metabolism, nucleotide metabolism, and carbohydrate metabolism.
• Genes significantly expressed from young to mature stages were associated with carbohydrate metabolism, amino acid metabolism, and cofactor/vitamin metabolism.

Conclusions:

• The Durian fruit transcriptome analysis reveals key genes involved in fruit development and ripening.
• Identified DEGs provide insights into metabolic pathways crucial for fruit maturation.
• This transcriptomic data serves as a valuable resource for future Durian fruit improvement strategies.