Use of AFLPS to distinguish landraces of pejibaye (Bactris gasipaes) in brazilian Amazonia

Although the first inhabitants of western Amazonia domesticated pejibaye (Bactris gasipaes Kunth, Palmae) or peach palm for its fruits, today it is widely planted for its heart-of-palm. Like other domesticates, pejibaye presents a complex hierarchy of landraces developed before the conquest of the Americas. The existence of three landraces (Pará, Solimões, Putumayo) was proposed along the Amazonas and Solimões Rivers, Brazil, based on morphological characteristics. There are some questions remaining about the intermediate landrace being an artifact of the morphometric analysis. AFLPs were used to evaluate the relationships among samples of these putative landraces. DNA was extracted from 99 plants representing 13 populations maintained in the Pejibaye Germplasm Bank, Manaus, AM; six primer combinations generated 245 markers via PCR, which were scored in an ABI Prism 310 sequencer and analyzed with GeneScan Software; Jaccard similarities were estimated and a dendrogram was generated with UPGMA. Two groups of plants were observed in the dendrogram instead of three, and were similar at 0.795. Each group contained two subgroups, similar at 0.815. One group (n=41) contained 73% Pará landrace plants, with one subgroup (n=22) containing 91% Pará, and the other (n=19) containing 53% Pará. The other group (n=58) contained 53% Solimões and 40% Putumayo landrace plants, with one subgroup (n=21) containing 52% Solimões and 43% Putumayo, and the other (n=35) containing 57% Solimões and 37% Putumayo. The first group confirmed the Pará landrace. The second group suggested that the Solimões landrace does not exist, but that the Putumayo landrace extends along the Solimões River to Central Amazonia.

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Chemical composition of the fruit mesocarp of three peach palm (Bactris gasipaes) populations grown in Central Amazonia, Brazil

International Journal of Food Sciences and Nutrition ◽

10.1080/0963748031000061994 ◽

2003 ◽

Vol 54 (1) ◽

pp. 49-56

Author(s):

Lúcia K. O. Yuyama ◽

Jaime P. L. Aguiar ◽

Kaoru Yuyama ◽

Charles R. Clement ◽

Sonja H. M. Macedo ◽

...

Keyword(s):

Chemical Composition ◽

Bactris Gasipaes ◽

Peach Palm ◽

Central Amazonia

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Seed biometric parameters in oil palm accessions from a Brazilian germplasm bank

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2014000800004 ◽

2014 ◽

Vol 49 (8) ◽

pp. 604-612 ◽

Cited By ~ 3

Author(s):

Julcéia Camillo ◽

Valentine Carpes Braga ◽

Jean Kleber de Abreu Mattos ◽

Ricardo Lopes ◽

Raimundo Nonato Vieira da Cunha ◽

...

Keyword(s):

Oil Palm ◽

Morphological Characteristics ◽

Principal Component ◽

Morphological Diversity ◽

The Other ◽

Germplasm Bank ◽

Region Of Origin ◽

Elaeis Oleifera ◽

Morphological Differences ◽

Seed Characteristics

The objective of this work was to evaluate the morphological diversity of oil palm seeds and to cluster the accessions according to their morphological characteristics. Forty-one accessions from the oil palm germplasm bank of Embrapa Amazônia Ocidental were evaluated - 18 of Elaeis oleifera and 23 of E. guineensis. The groups were formed based on morphological characteristics, by principal component analysis. In E. oleifera, four groups were formed, tied to their region of origin, but with significant morphological differences between accessions from the same population. For tenera-type E. guineensis seeds, three widely divergent groups were formed, especially as to external parameters, which differentiated them from the other ones. The parameter endocarp thickness stood out in intra- and inter-population differentiation. For dura-type E. guineensis, three groups were formed, with larger seeds and thicker endocarps, which differed from all the other ones. The variability observed for seed characteristics in the analyzed accessions allows the establishment of different groups, to define strategies for genetic improvement.

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Impacto potencial de la taltuza (Orthogeomys sp.) en el cultivo del pejibaye (Bactris gasipaes) en Costa Rica.

Agronomía Mesoamericana ◽

10.15517/am.v10i2.17989 ◽

2006 ◽

Vol 10 (2) ◽

pp. 133

Author(s):

Javier Monge

Keyword(s):

Costa Rica ◽

Geographical Distribution ◽

The Other ◽

Bactris Gasipaes ◽

Pocket Gopher ◽

Peach Palm ◽

Distribution Maps ◽

The One

The taltuzas (pocket gopher) (Orthogeomys sp.) are rodents that plague several crops from USA to Panama. Peach palm (Bactris gasipaes) is a crop in expansion that overlaps in its geographical distribution with the one of Pocket gopher. Three patterns were found by superposing the distribution maps of rodents and palms. In one pattern only one organism was present but not the other whereas in two patterns rodents and palms were coincident. Since peach palm is attacked by the taltuzas, some considerations were discussed for each pattern in relation to future expansion of this crop.

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Chemical composition of the fruit mesocarp of three peach palm ( Bactris gasipaes ) populations grown in Central Amazonia, Brazil

International Journal of Food Sciences and Nutrition ◽

10.1080/096374803/000061994 ◽

2003 ◽

Vol 54 (1) ◽

pp. 49-56 ◽

Cited By ~ 2

Author(s):

Lúcia K. O. Yuyama ◽

Jaime P. L. Aguiar ◽

Kaoru Yuyama ◽

Charles R. Clement ◽

Sonja H. M. Macedo ◽

...

Keyword(s):

Chemical Composition ◽

Bactris Gasipaes ◽

Peach Palm ◽

Central Amazonia

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Agentes protectores contra hongos asociados a la semilla de pejibaye (Bactris gasipaes Kunth).

Agronomía Mesoamericana ◽

10.15517/am.v11i1.17363 ◽

2006 ◽

Vol 11 (1) ◽

pp. 127

Author(s):

Carlos Arroyo ◽

Jorge Mora ◽

Edgar Vargas ◽

Javier Gainza

Keyword(s):

Hydrogen Peroxide ◽

Seed Germination ◽

The Other ◽

Bactris Gasipaes ◽

Peach Palm ◽

Other Hand ◽

Germination Process

Non traditional alternatives for fungi control were tried on peach palm seed germination process. Two substances - kerosene and gasoline - were found as effective as traditional fungicide treatments triadime- fon and carboxin+benomyl. This is due to their fungicide action and posterior evaporation, not interfering with respiration as is the case with dieses oil. It was found that the hydrogen peroxide accelerates the germination process, but it is not an effective fungicide. On the other hand, kilol seem to be a promising fungicide in this respect if used at a concentration higher than 10 cc/l of water.

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Carotenoid and phenolic compound profiles of cooked pulps of orange and yellow peach palm fruits (Bactris gasipaes) from the Brazilian Amazonia

Journal of Food Composition and Analysis ◽

10.1016/j.jfca.2021.103873 ◽

2021 ◽

pp. 103873

Author(s):

Renan Campos Chisté ◽

Evellyn Laís Neves Costa ◽

Sara Fonseca Monteiro ◽

Adriana Zerlotti Mercadante

Keyword(s):

Phenolic Compound ◽

Bactris Gasipaes ◽

Peach Palm ◽

Brazilian Amazonia ◽

Palm Fruits

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Micromorfología de los foliolos de pejibaye Bactris gasipaes (Arecaceae) var. Diamantes-10

Revista de Biología Tropical ◽

10.15517/rbt.v64i3.19718 ◽

2016 ◽

Vol 64 (3) ◽

Author(s):

Ethel Sánchez-Chacón ◽

Olman Alvarado-Rodríguez ◽

Alexander Rodríguez-Arrieta ◽

Luis Gómez-Alpízar

Keyword(s):

Electron Microscopy ◽

Morphological Characteristics ◽

The Other ◽

Central Vein ◽

Vascular Bundles ◽

Bactris Gasipaes ◽

Vessel Elements ◽

Companion Cells ◽

Parenchyma Cells ◽

Anatomical Difference

Bactris gasipaes is widely cultivated for the consumption of palm hearts and fruits. The present work describes the micro morphological characteristics of leaflets from adult plants of B. gasipaes, thornless variety Diamantes-10, collected in the Diamantes Experimental Station in Guápiles, Costa Rica. We collected 25 leaflets and analyses were performed with a combination of microscopy techniques: light microscopy, scanning electron microscopy and transmission electron microscopy to study their structure. Our results showed that leaflets have abundant epicuticular wax on adaxial and abaxial surfaces. Analyses from the epidermis indicated that it is composed of isodiametric cells, and it is also evident that hypodermis cells have rectangular shape and are larger than the other epidermal cells. We observed stomata on both surfaces, but they were more abundant in the abaxial surface. On the other hand, the epidermis showed the presence of trichomes with three different morphologies. In the parenchyma, cells are large and not well defined, and we observed the presence of astroesclereids, and compact groups of fiber bundles between parenchyma cells. The central vein has several vascular bundles, arranged in a continuous manner, and they are surrounded by sclerotic tissue; some of these fibers presented live protoplasts. All minor veins showed the same anatomy as the central vein. In these veins, the vessel elements of protoxylem and metaxylem showed scalariform ornaments on their walls. Phloem is located towards the adaxial surface of the vein and we observed sieve and companion cells surrounded by fibers and parenchyma cells. The companion cells presented branched plasmodesmata attached to a sieve element, and in these elements we found protein bodies called P-protein. The main anatomical difference in the leaflets of the var. Diamantes-10, compared to the other varieties of B. gasipaes K, is the lack of thorns; the other morphological features seem to be conserved.

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RHYNCHOLITES AND THE PROBLEM OF NARROW AND BROAD CONCEPTION OF TAXONS

Proceedings of higher educational establishments Geology and Exploration ◽

10.32454/0016-7762-2018-1-12-17 ◽

2018 ◽

pp. 12-17 ◽

Cited By ~ 3

Author(s):

I. R. Khuzina ◽

V. N. Komarov

Keyword(s):

Sexual Dimorphism ◽

Morphological Characteristics ◽

Mass Scale ◽

Individual Variability ◽

Point Of View ◽

The Other ◽

New Taxon ◽

Artificial System ◽

Broad Understanding

The paper considers a point of view, based on the conception of the broad understanding of taxons. According to this point of view, rhyncholites of the subgenus Dentatobeccus and Microbeccus are accepted to be synonymous with the genus Rhynchoteuthis, and subgenus Romanovichella is considered to be synonymous with the genus Palaeoteuthis. The criteria, exercising influence on the different approaches to the classification of rhyncholites, have been analyzed (such as age and individual variability, sexual dimorphism, pathological and teratological features, degree of disintegration of material), underestimation of which can lead to inaccuracy. Divestment of the subgenuses Dentatobeccus, Microbeccus and Romanovichella, possessing very bright morphological characteristics, to have an independent status and denomination to their synonyms, has been noted to be unjustified. An artificial system (any suggested variant) with all its minuses is a single probable system for rhyncholites. The main criteria, minimizing its negative sides and proving the separation of the new taxon, is an available mass-scale material. The narrow understanding of the genus, used in sensible limits, has been underlined to simplify the problem of the passing the view about the genus to the other investigators and recognition of rhyncholites for the practical tasks.

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