Determination of the mating system of Tucumã palm using microsatellite markers

Ramos, Santiago Linório Ferreyra; Lopes, Maria Teresa Gomes; Lopes, Ricardo; Cunha, Raimundo Nonato Vieira da; Macêdo, J. L. V. de; Contim, Luis Antônio Serrão; Clement, Charles R.; Rodrigues, Doriane Picanço; Bernardes, Laura Graciliana

doi:10.1590/s1984-70332011000200011

Cited by 17 publications

(30 citation statements)

References 16 publications

(16 reference statements)

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“…(Ottewell et al 2012). This result also suggests that this species has an outcrossing reproductive system, which may be inferred since the application of molecular markers in adult plants and their progenies in species of the same genus detected this type of reproductive strategy (Eguiarte et al 1992, Ramos et al 2011. In this study, private alleles were observed for all three populations.…”

Section: Discussionsupporting

confidence: 63%

“…The transferability of the primers was possible as a result of the homology between the genomes of these two species of the same genus. This homology was also found in the case of SSRs developed for peach-palm (Bactris gasipaes Kunth) that were transferred for use in tucumã palm (Astrocaryum aculeatum) (Ramos et al 2011), as well as the species cited in the review by Kalia et al (2011).…”

Section: Discussionmentioning

confidence: 58%

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Genetic diversity and structure of Astrocaryum jauari (Mart.) palm in two Amazon river basins

Oliveira

Ramos

Lopes

et al. 2014

Crop Breed. Appl. Biotechnol.

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Section: Discussionsupporting

confidence: 63%

Section: Discussionmentioning

confidence: 58%

Genetic diversity and structure of Astrocaryum jauari (Mart.) palm in two Amazon river basins

Oliveira

Ramos

Lopes

et al. 2014

Crop Breed. Appl. Biotechnol.

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“…In a review, Husband and Schemske (1996) found general support for the theoretical prediction that, for outcrossing species, inbreeding depression tends to be expressed at early life stages. Although, there is no information on the mating system of A. murumuru and A. paramaca, close relatives, including A. mexicanum (Eguiarte et al, 1992) and A. aculeatum, are outcrossing (Ramos et al, 2011), and Oliveira NP, Oliveira MSP, Davide LC, Kalisz S (unpublished results) indicate that A. vulgare is outcrossing as well. Given the life history, floral and ecological traits shared by A. murumuru and A. paramaca with A. vulgare are likely all outcrossing.…”

Section: Discussionmentioning

confidence: 99%

“…All three species are monoecious, perennial, produce fleshy fruits containing a single seed, and their inflorescences are composed of separate male and female flowers distributed in dyads and triads (Kahn, 2008). The mating system of A. aculeatum was classified as outcrossing (Ramos et al, 2011). To date, there is no information on the mating system of the other two species studied here.…”

Section: Study Species Sampling Sites and Plant Materialsmentioning

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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“…Total DNA was extracted with the cationic detergent CTAB (2% cationic hexadecyl trimethyl ammonium bromide), as proposed by Doyle and Doyle () and then quantified in GelRed (Biotium) (Ramos et al., ). Eighteen microsatellite loci developed for E. precatoria (Epr01, Epr02, Epr04, Epr05, Epr06, Epr13, Epr14, Epr15, Epr18, Epr19, Epr21, Epr22, Epr27, Epr31, Epr32, Epr33, Epr35, and Epr36) were used in the study (Ramos, Dequigiovanni, Lopes et al., ).…”

Section: Methodsmentioning

confidence: 99%

Paternity analysis, pollen flow, and spatial genetic structure of a natural population ofEuterpe precatoriain the Brazilian Amazon

Ramos

Dequigiovanni

Sebbenn

et al. 2018

Ecology and Evolution

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Euterpe precatoria, known as açaí do Amazonas, is a regionally important palm of the Amazon rainforest for the fruit production through extractive agriculture. Little information is available with regard to genetic diversity, gene flow, and spatial genetic structure (SGS) of açaí populations, which are essential for the use, management, and conservation of genetic resources of the species. This research aimed to assess the genetic diversity, inbreeding level, SGS, and gene flow in four ontogenetic stages of a natural E. precatoria population in the Brazilian Amazon, based on 18 microsatellite loci. The study was carried out in a natural population dispersed in an area of about 10 ha. Leaf tissues of 248 plants were mapped and sampled and classified into four ontogenetic stages: reproductive (59), immature (70), young (60), and seedling (59). Genetic diversity indices were high for all ontogenetic stages. The fixation index (F) for all ontogenetic stages was not significantly different from zero, indicating the absence of inbreeding. A significant SGS was found for all ontogenetic stages (68–110 m), indicating seed dispersal over short distances. Paternity analysis detected pollen immigration of 39.1%, a selfing rate of 4.2%, and a mean pollen dispersal distance within the population of 531 m. The results indicate substantial allele input in the population via pollen immigration, contributing to the maintenance of the genetic diversity of the population. However, within a population, the renewal with new progenies selected from seed plants spaced at least 110 m apart is important to avoid collecting seeds from related plants.

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Determination of the mating system of Tucumã palm using microsatellite markers

Abstract: -

Cited by 17 publications

References 16 publications

Genetic diversity and structure of Astrocaryum jauari (Mart.) palm in two Amazon river basins

Genetic diversity and structure of Astrocaryum jauari (Mart.) palm in two Amazon river basins

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

Paternity analysis, pollen flow, and spatial genetic structure of a natural population ofEuterpe precatoriain the Brazilian Amazon

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