Genetic diversity of taro, Colocasia esculenta (L.) Schott, in Southeast Asia and the Pacific

  title={Genetic diversity of taro, Colocasia esculenta (L.) Schott, in Southeast Asia and the Pacific},
  author={C. M. Kreike and Herman J. van Eck and Vincent Lebot},
  journal={Theoretical and Applied Genetics},
The genetic diversity of 255 taro (Colocasia esculenta) accessions from Vietnam, Thailand, Malaysia, Indonesia, the Philippines, Papua New Guinea and Vanuatu was studied using AFLPs. Three AFLP primer combinations generated a total of 465 scorable amplification products. The 255 accessions were grouped according to their country of origin, to their ploidy level (diploid or triploid) and to their habitat—cultivated or wild. Gene diversity within these groups and the genetic distance between… 

Genetic diversity of taro (Colocasia esculenta (L.) Schott) in Vanuatu (Oceania): an appraisal of the distribution of allelic diversity (DAD) with SSR markers

The use of this set of microsatellite markers along with the molecular dataset obtained from this study as effective tools to monitor the diversity and evolution of taro in the future are discussed.

Characterisation of taro (Colocasia esculenta (L.) Schott) genetic resources in Southeast Asia and Oceania

The results of these studies indicate that the genetic base of the cultivars is narrow, which implies that crosses between accessions originating from only one country are not desirable and it is appropriate to cross cultivars from both genepools.

Genetic Diversification and Dispersal of Taro (Colocasia esculenta (L.) Schott)

The diversity and diversification of taro accessions from nineteen countries in Asia, the Pacific, Africa and America were investigated, with the highest genetic diversity and number of private alleles in Asian accessions, mainly from India.

Study of Genetic Diversity in South Indian Taro (Colocasia esculenta (L.) Schott.) Using Random Amplified Polymorphic DNA Markers

The phylogenetic tree generated using UPGMA cluster analysis revealed that genetic diversity in taro was correlated with the wild and the cultivated forms and may be suggestive of agro-ecological and sexual separation between them.

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This study utilizes six microsatellite primers to analyze five populations of taro from three different regions of East Africa to establish a regional collection that will be conserved and ensure a broad genetic base for available varieties and enable development of improved varieties through breeding programmes.

Genetic Diversity in Taro (Colocasia esculenta)

Taro is a neglected crop in terms of recent advances in molecular biology, with only a limited number of studies utilizing next-generation transcriptome and genome sequencing; however, recent genotyping-by-sequencing (GBS) approaches promise to improve the understanding of taro genetics.


Indonesia has a great diversity of taro (Colocasia esculenta L. Schott) which is cultivated and used as a non-rice source of carbohydrates. Taro could be processed for various foods, including baby



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Results showed greater isozyme variation in Asia than in Oceania, with Indonesia being the area of greatest diversity and the majority of the Indonesian cultivars were different from the Philippine and Oceanian taro cultivars.

Molecular characterization of taro (Colocasia esculenta) using RAPD markers

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Genetic variation within and among five Danish populations of wild carrot and five cultivated varieties was investigated using amplified fragment length polymorphism (AFLP), showing that the major part of the genetic variation in the plant material was found within populations/varieties.

The potential of AFLPs in biosystematics: A first application inSolanum taxonomy(Solanaceae)

Using the AFLP technique highly informative DNA fingerprints were generated from 19 taxa of Solanum sect.Petota (potatoes) and threeTaxa ofSolanum Sect.Lycopersicum (tomatoes), and classifications based on the molecular markers were generally in agreement with current taxonomic opinions.

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Investigation of the amount of genetic diversity and the relationships between mulberry genotypes using fluorescence-based AFLP markers indicated that the mulberry germplasm collection represents a genetically diverse popu-lation.

Biomolecular evidence for plant domestication in Sahul

  • V. Lebot
  • Biology
    Genetic Resources and Crop Evolution
  • 2004
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Karyotypic and electrophoretic studies on taro and its origin

All the strains have diverged at morphological, karyotypic and genotypic levels and it is suggested that taro might have originated in the north-eastern India.

PCR-based fingerprinting using AFLPs as a tool for studying genetic relationships in Lactuca spp.

AFLP markers were evaluated for determining the phylogenetic relationships Lactuca spp. Genetic distances based on AFLP data were estimated for 44 morphologically diverse lines of cultivated L.

Use of allele specificity of comigrating AFLP markers to align genetic maps from different potato genotypes

The high incidence of corresponding AFLP alleles was confirmed by using an additional set of five primer combinations and the 733 AFLP markers identified provide a valuable reference collection for future mapping studies in potato, which may replace more laborious locus-specific marker techniques.