- Diversification and geographical distribution of Psidium (Myrtaceae) species with distinct ploidy levels

Distribution of the seven Psidium species in Brazilian biomes based on data from the literature, herbaria, and the present study. Distribution of the diploid species (2n = 2x = 22 chromosomes): P. cauliflorum (blue circle), P. guajava (black circle), and P. oblongatum (yellow circle). Note that P. cauliflorum and P. oblongatum (yellow circle) only occur in the Atlantic Forest. Tetraploid species (2n = 4x = 44 chromosomes): distribution of P. guineense (black square) was not registered in Pantanal and the Pampas. Hexaploid species (2n = 6x = 66 chromosomes): P. cattleyanum (green triangle) and P. myrtoides (red triangle) occur in the Atlantic Forest, Cerrado, Caatinga, and the Pampas. Octoploid species (2n = 8x = 88 chromosomes): P. longipetiolatum (blue hexagon) is found distributed in the Atlantic Forest from Minas Gerais to Rio Grande do Sul. The coordinates used to define the species’ geographical distribution were obtained with the application Google Earth, using the locations indicated on the labels of the herbarium specimens. The map of geographical distribution was made using the program DIVA GIS 5.4

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Diversification and geographical distribution of Psidium (Myrtaceae) species with distinct ploidy levels - Scientific Figure on ResearchGate. Available from: https://www.researchgate.net/figure/Distribution-of-the-seven-Psidium-species-in-Brazilian-biomes-based-on-data-from-the_fig4_332161489 [accessed 30 Jun, 2024]

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Distribution of the seven Psidium species in Brazilian biomes based on data from the literature, herbaria, and the present study. Distribution of the diploid species (2n = 2x = 22 chromosomes): P. cauliflorum (blue circle), P. guajava (black circle), and P. oblongatum (yellow circle). Note that P. cauliflorum and P. oblongatum (yellow circle) only occur in the Atlantic Forest. Tetraploid species (2n = 4x = 44 chromosomes): distribution of P. guineense (black square) was not registered in Pantanal and the Pampas. Hexaploid species (2n = 6x = 66 chromosomes): P. cattleyanum (green triangle) and P. myrtoides (red triangle) occur in the Atlantic Forest, Cerrado, Caatinga, and the Pampas. Octoploid species (2n = 8x = 88 chromosomes): P. longipetiolatum (blue hexagon) is found distributed in the Atlantic Forest from Minas Gerais to Rio Grande do Sul. The coordinates used to define the species’ geographical distribution were obtained with the application Google Earth, using the locations indicated on the labels of the herbarium specimens. The map of geographical distribution was made using the program DIVA GIS 5.4

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<a href="https://www.researchgate.net/figure/Distribution-of-the-seven-Psidium-species-in-Brazilian-biomes-based-on-data-from-the_fig4_332161489"><img src="https://www.researchgate.net/profile/Amelia-Tuler/publication/332161489/figure/fig4/AS:960238542917633@1605950117475/Distribution-of-the-seven-Psidium-species-in-Brazilian-biomes-based-on-data-from-the.png" alt="Distribution of the seven Psidium species in Brazilian biomes based on data from the literature, herbaria, and the present study. Distribution of the diploid species (2n = 2x = 22 chromosomes): P. cauliflorum (blue circle), P. guajava (black circle), and P. oblongatum (yellow circle). Note that P. cauliflorum and P. oblongatum (yellow circle) only occur in the Atlantic Forest. Tetraploid species (2n = 4x = 44 chromosomes): distribution of P. guineense (black square) was not registered in Pantanal and the Pampas. Hexaploid species (2n = 6x = 66 chromosomes): P. cattleyanum (green triangle) and P. myrtoides (red triangle) occur in the Atlantic Forest, Cerrado, Caatinga, and the Pampas. Octoploid species (2n = 8x = 88 chromosomes): P. longipetiolatum (blue hexagon) is found distributed in the Atlantic Forest from Minas Gerais to Rio Grande do Sul. The coordinates used to define the species’ geographical distribution were obtained with the application Google Earth, using the locations indicated on the labels of the herbarium specimens. The map of geographical distribution was made using the program DIVA GIS 5.4"/></a>