Genetic diversity among endangered Uruguayan populations of Butia Becc. species based on ISSR

Gaiero, Paola; Mazzella, Cristina; Agostini, Gustavo; Bertolazzi, Sabrina; Rossato, Marcelo

doi:10.1007/s00606-010-0412-0

Cited by 25 publications

(12 citation statements)

References 37 publications

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“…Studies of genetic diversity in palm species have been increasing in the last decades and, in most of them, the level of genetic diversity was high, with the percentage of polymorphic loci ~100%, the number of alleles per locus greater than four, and heterozygosity higher than 0.5 (e.g., Conte et al, 2003;Meerow et al, 2003;Choo et al, 2010;Gaiero et al, 2011;Gomes et al, 2011). Other population genetic structure parameters, such as Wright's inbreeding coefficient and gene flow, have shown that, in general, genetic differentiation (F ST ) is low, indicating genetic variation higher within -rather than among -populations and a high gene flow among populations (Elshibli and Korpelainen, 2008;Martins-Corder et al, 2009;Shapcott et al, 2009;Namoff et al, 2011;Silva et al, 2011;Giovino et al, 2014;Nazareno and dos Reis, 2014;Oliveira et al, 2014;Moura et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Research Article Population genetic structure of three species in the genus Astrocaryum G. Mey. (Arecaceae).

Oliveira

Davide

et al. 2017

Genet. Mol. Res.

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ABSTRACT.We assessed the level and distribution of genetic diversity in three species of the economically important palm genus Astrocaryum located in Pará State, in northern Brazil. Samples were collected in three municipalities for Astrocaryum aculeatum: Belterra, Santarém, and Terra Santa; and in two municipalities for both A. murumuru: Belém and Santo Antônio do Tauá and A. paramaca: Belém and Ananindeua. Eight microsatellite loci amplified well and were used for genetic analysis. The mean number of alleles per locus for A. aculeatum, A. murumuru, and A. paramaca were 2.33, 2.38, and 2.06, respectively. Genetic diversity was similar for the three species, ranging from H E = 0.222 in A. aculeatum to H E = 0.254 in A. murumuru. Both F ST and AMOVA showed that most of the genetic variation was found within populations for all three species, but high genetic differentiation among populations was found for A. aculeatum. Three loci were not in HardyWeinberg equilibrium, with populations of A. paramaca showing a tendency for the excess of heterozygotes (F IS = -0.144). Gene flow was 2 N.P. Oliveira et al. Genetics and Molecular Research 16 (3): gmr16039676 high for populations of A. paramaca (N m = 19.35). Our results suggest that the genetic diversity within populations followed the genetic differentiation among populations due to high gene flow among the population. Greater geographic distances among the three collection sites for A. aculeatum likely hampered gene flow for this species.

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Section: Introductionmentioning

confidence: 99%

Research Article Population genetic structure of three species in the genus Astrocaryum G. Mey. (Arecaceae).

Oliveira

Davide

et al. 2017

Genet. Mol. Res.

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“…For example, Hamza et al (2012) studied the palm tree Phoenix dactylifera L. with the use of six primers and 43 loci. While in researching with the Butia genus (Arecaceae), Gaieiro et al (2011) selected five primers which generated 74 loci. For the PIC, the average value of 0.49 indicates that the primers used are in the moderately informative range, like that observed by Pinheiro et al (2017) in studies using ISSR markers with Copernicia prunifera (Mill.)…”

Section: Genetic Polymorphism and Pic Valuementioning

confidence: 99%

Genetic diversity of long-established populations of Elaeis guineensis jacquin (Arecaceae)

et al. 2019

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This study aimed to estimate the genetic diversity of three Elaeis guineensis populations in Rio Grande do Norte state, as well as to verify the decreases in effective population size. The population with the highest polymorphism was MAT (Mata) with+ 57 loci (72%), followed by RIA (Riacho) with 54 loci (68%) and HOR (Horta) with 34 loci (43.03%). The RIA population was shown to be the most genetically diverse, with Nei (h = 0.28) and Shannon (I = 0.41) diversity indices. There was high genetic differentiation among populations (AMOVA, analysis of molecular variance = 42%), which was separated into three distinct genetic groups according to a Bayesian analysis. There was a significant population decrease (P < 0.05) for the HOR population in the IAM (infinite allele model) and SMM (stepwise mutation model), and for the RIA population in the IAM. The data obtained in this study may support ex-situ conservation projects for Elaeis guineensis, contributing to the selection of genotypes and their sustainable use.

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“…Genetic data can contribute to quantifying genetic diversity and, also, lead to results that can contribute and guide the breeding programs. The molecular information complements the knowledge about the morphocultural aspects of the isolates, assesses, validates and facilitates comparisons to species that have already been described (Gaiero et al, 2011). To date, the literature on the genetic diversity of Colletotrichum from papayas in Brazil is somewhat generic and scarce.…”

Section: Introductionmentioning

confidence: 97%

Morphocultural and molecular characterization of papaya tree Colletotrichum spp.

Stracieri¹,

Pereira²,

Silveira³

et al. 2016

Afr. J. Agric. Res.

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Papaya cultivation has great economic importance in tropical and subtropical countries, and Brazil is one of the largest producers of papaya (Carica papaya L.) in the world. However, productivity is hampered by plant health problems, particularly the pathogen Colletotrichum spp., which causes anthracnose and great damages on postharvest handling. This study characterized the morphocultural and genetic diversity of 21 isolates of papaya Colletotrichum spp. from different Brazilian states. The species were identified using the taxon-specific primers for Colletotrichum gloeosporioides and Colletotrichum acutatum. Eleven ISSR molecular markers were used to investigate the genetic diversity of the isolates. Moreover, the mycelial growth rate, pathogenicity, average diameter and colony color parameters were used in the morphocultural characterization. Of the 21 isolates, 19 were identified as C. gloeosporioides and two as C. acutatum. The ISSR markers showed great genetic diversity between the C. gloeosporioides and C. acutatum isolates, especially those from different locations. The morphocultural aspects displayed high polymorphism, and Linhares-1 and Linhares-2 isolated stood out for having unique characteristics when compared to other isolates. The pathogenicity test was positive for all isolates, but with different severity degree. C. gloeosporioides and C. acutatum displayed high genetic diversity among the isolates from different locations, and great morphocultural variability among isolates of papaya Colletotrichum.

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Genetic diversity among endangered Uruguayan populations of Butia Becc. species based on ISSR

Cited by 25 publications

References 37 publications

Research Article Population genetic structure of three species in the genus Astrocaryum G. Mey. (Arecaceae).

Research Article Population genetic structure of three species in the genus Astrocaryum G. Mey. (Arecaceae).

Genetic diversity of long-established populations of Elaeis guineensis jacquin (Arecaceae)

Morphocultural and molecular characterization of papaya tree Colletotrichum spp.

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