De novo transcriptome assembly and development of EST-SSR derived functional domain markers for Pandanus amaryllifolius

Sidek, Norhafizah and Tan, Boon Chin and Mebus, Katharina and Taheri, Sima and Teo, Chee How (2024) De novo transcriptome assembly and development of EST-SSR derived functional domain markers for Pandanus amaryllifolius. Crop Breeding and Applied Biotechnology, 24 (4). e501424414. ISSN 1984-7033, DOI https://doi.org/10.1590/1984-70332024v24n4a51.

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Official URL: https://doi.org/10.1590/1984-70332024v24n4a51

Abstract

Pandanus amaryllifolius, a tropical fragrant screw pine, is commonly used in cooking and traditional medicine. Although studies have analysed its metabolite, transcriptome, and proteome profiles, molecular markers for genetic improvement remain scarce. This study aimed to develop EST-SSR markers from the P. amaryllifolius transcriptome and utilise them to analyse their genetic diversity. We obtained 157,467 unigenes with an average length of 1,084 base pairs. From these, 66,820 EST-SSRs were identified, with dinucleotides being the most common (45.5%). Following functional domain marker (FDM) analysis, 7,208 markers were used for in silico PCR, which revealed 8,843 polymorphic bands (86.9%), with an average polymorphic information content (PIC) of 0.41, gene diversity of 0.54, and a Shannon index of 0.91. The dendrogram and PCA plot clearly separated samples from Malaysia and India. These findings provide a new alternative for EST-SSR marker validation and a foundation for genetic improvement and conservation strategies for P. amaryllifolius.

Item Type: Article
Funders: Universiti Malaya (RU006-2019), MOHE-Top 100 grant (TU002B-2018)
Uncontrolled Keywords: Pandanus amaryllifolius; expressed sequence tag (EST)-simple sequence repeats (SSR); RNA-seq; functional domain marker (FDM); in silico PCR
Subjects: Q Science > QH Natural history
S Agriculture > S Agriculture (General)
Divisions: Deputy Vice Chancellor (Research & Innovation) Office > Centre for Research in Biotechnology for Agriculture
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 20 Jan 2025 01:37
Last Modified: 20 Jan 2025 01:37
URI: http://eprints.um.edu.my/id/eprint/47653

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