Assessing genetic diversity and population structure in a Dipteryx alata germplasm collection utilizing microsatellite markers
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Data
2019
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Resumo
Dipteryx alata Vogel (Leguminosae) is a native Neotropical tree with
a wide distribution in the Brazilian Cerrado that is commonly known as the baru
tree. The genetic diversity of 150 D. alata progeny from a germplasm collection
was characterized using nine microsatellite markers. Genetic diversity analysis
detected 50 alleles ranging from 2 to 14 alleles per locus. The genetic differentiation
among populations (ϑp = 0.097) suggests moderate genetic structuring
and high genetic differentiation among progenies (ϑs = 0.169). The intrapopulation
index (f = 0.122) indicates the presence of low endogamy. The effective
population size (Ne = 96) shows that the germplasm collection has sufficient
representativeness for use as a base population for breeding programmes.
These results are useful for the exploitation of the genetic resources of D. alata
for future conservation efforts and breeding programmes.
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Baru, Genetic resources, Cerrado, Ex situ conservation, Effective size
Citação
GUIMARÃES, Rejane Araújo; MIRANDA, Kássia Marques Corrêa; MOTA, Elias Emanuel Silva; CHAVES, Lázaro José; TELLES, Mariana Pires de Campos; SOARES, Thannya Nascimento. Assessing genetic diversity and population structure in a Dipteryx alata germplasm collection utilizing microsatellite markers. Crop Breeding and Applied Biotechnology, Viçosa, v. 19, n. 3, p. 329-336, 2019. DOI: 10.1590/1984-70332019v19n3a45. Disponível em: https://www.scielo.br/j/cbab/a/BMYJnMQ7FqrHvKM8KLTNC6F/?lang=en. Acesso em: 26 jan. 2023.