Assessment of genetic diversity within eucheumatoid cultivars in east Sabah, Malaysia - MNHN - Muséum national d'Histoire naturelle Accéder directement au contenu
Article Dans Une Revue Journal of Applied Phycology Année : 2021

Assessment of genetic diversity within eucheumatoid cultivars in east Sabah, Malaysia

Pui-Ling Tan
  • Fonction : Auteur
Sze-Wan Poong
  • Fonction : Auteur
Ji Tan
  • Fonction : Auteur
Janina Brakel
  • Fonction : Auteur
Juliet Brodie
Ahemad Sade
  • Fonction : Auteur
Phaik-Eem Lim
  • Fonction : Auteur
  • PersonId : 1117449

Résumé

Studies have shown that cultivars of the carrageenophytes Kappaphycus and Eucheuma are clones of a limited number of strains originally domesticated from wild populations. For the development and selection of new cultivars, it is important that a comprehensive record of available variants exists. This study was conducted to provide up-to-date analysis and compilation of the current state of cultivars as the last list of cultivars was compiled nearly a decade ago. The present study analyzed the cox 2–3 spacer and cox 1 (1356 bp) genetic diversity of cultivars collected from 2019 to 2020 from the east coast of Sabah where the seaweed farms are concentrated. These data were compared with cultivars reported from 2010 to 2012 to assess changes, if any, to the gene pool of farmed eucheumatoid in Malaysia. Kappaphycus alvarezii , K. striatus , and K. malesianus are currently cultivated while Eucheuma denticulatum is no longer an important cultivar compared to a decade ago, probably due to its lower price. Analysis of the cox 2–3 spacer revealed a new haplotype, LBT10, and, by including published GenBank data, a further four previously unnamed haplotypes were recognized from Sabah. This study confirms that there is a limited gene pool within cultivars in Malaysia and suggests the need for new or genetically diverse cultivars which can adapt to a changing environment, to ensure a more sustainable carrageenan industry.
Fichier principal
Vignette du fichier
Tan2021_Article_AssessmentOfGeneticDiversityWi.pdf (1.23 Mo) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

mnhn-03437681 , version 1 (20-11-2021)

Licence

Paternité

Identifiants

Citer

Pui-Ling Tan, Sze-Wan Poong, Ji Tan, Janina Brakel, Claire Gachon, et al.. Assessment of genetic diversity within eucheumatoid cultivars in east Sabah, Malaysia. Journal of Applied Phycology, 2021, ⟨10.1007/s10811-021-02608-8⟩. ⟨mnhn-03437681⟩

Collections

MNHN CNRS
28 Consultations
48 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More