Genetic diversity of the Australian National Mango Genebank

Dillon, Natalie L., Bally, Ian S. E., Wright, Carole L., Hucks, Louise, Innes, David J. and Dietzgen, Ralf G. (2013) Genetic diversity of the Australian National Mango Genebank. Scientia Horticulturae, 150 213-226. doi:10.1016/j.scienta.2012.11.003

Author Dillon, Natalie L.
Bally, Ian S. E.
Wright, Carole L.
Hucks, Louise
Innes, David J.
Dietzgen, Ralf G.
Title Genetic diversity of the Australian National Mango Genebank
Journal name Scientia Horticulturae   Check publisher's open access policy
ISSN 0304-4238
Publication date 2013-02-04
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.scienta.2012.11.003
Volume 150
Start page 213
End page 226
Total pages 14
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2014
Language eng
Abstract Assessment of genetic diversity is an essential component in germplasm characterisation and utilisation. In this study the genetic diversity of mango was determined among 254 Mangifera indica L. accessions and related Mangifera species originating from 12 diverse geographic areas using eleven known simple sequence repeat (SSR) markers from mango. A total of 133 alleles were detected, ranging from eight (LMMA12) to 16 (MIAC-5) alleles per locus with a mean value of 12.36 and an average polymorphism information content (PIC) of 0.72. The mean number of alleles (8.45) was highest in the South East Asian accessions (Indonesia/Malesia) and lowest in the accessions from the Philippines (2.55). Diversity analysis divided the accessions into four major nodes broadly representing their geographical origins. The genetic diversity of ‘Kensington Pride’ was confirmed as being very low and no parents for this cultivar were identified. No association could be established between SSR markers analysed and embryony. Ten synonymous accessions were identified with matching genetic identity with at least one other accession at all SSR loci examined. Twenty-two unique genotypes were identified for 50 trees previously assigned different accession names. The remaining accessions were genetically distinct from each other. This increased understanding of genetic diversity in the Australian National Mango Genebank will assist breeders to better select parents with the potential to contribute desired genes to the progeny and thus more rapidly deliver improved cultivars to industry to meet consumer demand.
Keyword Mangifera
Simple sequence repeats
Microsatellite markers
Genetic variability
Bayesian method
Mangifera-Indica L.
Multilocus Genotype Data
Fragment Length Polymorphism
Rapd Markers
Microsatellite Markers
Geographic Differentiation
Embryo Type
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
Official 2014 Collection
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Citation counts: TR Web of Science Citation Count  Cited 9 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 14 times in Scopus Article | Citations
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