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. 2017 Apr 20:8:577.
doi: 10.3389/fpls.2017.00577. eCollection 2017.

Genetic Map of Mango: A Tool for Mango Breeding

David N Kuhn  1 , Ian S E Bally  2 , Natalie L Dillon  2 , David Innes  2 , Amy M Groh  3 , Jordon Rahaman  3 , Ron Ophir  4 , Yuval Cohen  4 , Amir Sherman  4
Affiliations

Genetic Map of Mango: A Tool for Mango Breeding

David N Kuhn et al. Front Plant Sci. .

Abstract

Mango (Mangifera indica) is an economically and nutritionally important tropical/subtropical tree fruit crop. Most of the current commercial cultivars are selections rather than the products of breeding programs. To improve the efficiency of mango breeding, molecular markers have been used to create a consensus genetic map that identifies all 20 linkage groups in seven mapping populations. Polyembryony is an important mango trait, used for clonal propagation of cultivars and rootstocks. In polyembryonic mango cultivars, in addition to a zygotic embryo, several apomictic embryos develop from maternal tissue surrounding the fertilized egg cell. This trait has been associated with linkage group 8 in our consensus genetic map and has been validated in two of the seven mapping populations. In addition, we have observed a significant association between trait and single nucleotide polymorphism (SNP) markers for the vegetative trait of branch habit and the fruit traits of bloom, ground skin color, blush intensity, beak shape, and pulp color.

Keywords: Mangifera indica L.; SNP marker; genetic recombination map; polyembryony; trait association.

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Figures

Figure 1
Figure 1
The consensus genetic map of mango. Vertical lines represent linkage groups. Horizontal lines crossing the vertical lines depict the name and position in cM of SNP markers on the linkage group.
Figure 2
Figure 2
Graphs of the plot of the likelihood of the odds that a SNP marker is associated with the trait of polyembryony. (A) Linkage group 8 of the Cr × KP map. (B) Linkage group 8 of the TA × KP map.
Figure 3
Figure 3
Graphs of the plot of the likelihood of the odds that a SNP marker is associated with the trait of bloom. (A) Linkage group 9 of the I × KP map. (B) Linkage group 13 of the TA × KP map.
See this image and copyright information in PMC

References

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