Login | Request Account (DAF staff only)

Determination of phylogenetic relationships in the genus Mangifera based on whole chloroplast genome and nuclear genome sequences

View Altmetrics

Wijesundara, W. W. M. U. K., Furtado, A., Dillon, N. L., Masouleh, A. K. and Henry, R. (2023) Determination of phylogenetic relationships in the genus Mangifera based on whole chloroplast genome and nuclear genome sequences. bioRxiv . 2023.09.24.559211.


Article Link: https://doi.org/10.1101/2023.09.24.559211

Publisher URL: http://biorxiv.org/content/early/2023/09/24/2023.09.24.559211.abstract


The genus Mangifera (Anacardiaceae) includes 69 species of which Mangifera indica L. is the most important and primarily cultivated species for commercial mango production. Although the species are classified based on morphological descriptors, molecular evidence has proposed the hybrid origin of two species suggesting the possibility that more of the species may be of hybrid origin. To analyze evolutionary relationships within the genus, 13 samples representing 11 Mangifera species were sequenced and whole chloroplast (Cp) genomes and 47 common single-copy nuclear gene sequences were assembled and used for phylogenetic analysis using concatenation and coalescence-based methods. The Cp genome size varied from 151,752 to 158,965 bp with M. caesia and M. laurina having the smallest and largest genomes, respectively. Genome annotation revealed 80 protein-coding genes, 31 tRNA and four rRNA genes across all the species. Comparative analysis of whole Cp genome sequence and nuclear gene-based phylogenies revealed topological conflicts suggesting chloroplast capture or cross hybridization. The Cp genomes of M. altissima, M. applanata, M. caloneura and M. lalijiwa were similar to those of M. indica (99.9% sequence similarity). Their close sequence relationship suggests a common ancestry and likely cross-hybridization between wild relatives and M. indica. This study provides improved knowledge of phylogenetic relationships in Mangifera, indicating extensive gene flow among the different species, suggesting that hybrids may be common within the genus.Competing Interest StatementThe authors have declared no competing interest.

Item Type:Article
Corporate Creators:Department of Agriculture and Fisheries, Queensland
Business groups:Horticulture and Forestry Science
Subjects:Science > Botany > Genetics
Plant culture > Fruit and fruit culture
Live Archive:04 Oct 2023 04:19
Last Modified:24 Nov 2023 02:59

Repository Staff Only: item control page


Downloads per month over past year

View more statistics