Peach palm core collection in Brazilian Amazonia

Cristo-Araújo, Michelly de; Rodrigues, Doriane Picanço; Astolfi-Filho, Spártaco; Clement, Charles R.

doi:10.1590/1984-70332015v15n1a3

Cited by 9 publications

(11 citation statements)

References 13 publications

(38 reference statements)

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“…They also confirm the commonness of both long and middle distance gene flow and introgression reported by various authors (Adin et al, 2004;Couvreur et al, 2006;Cole et al, 2007;Hernández-Ugalde et al, 2011). The fact that they do not fully validate the landrace hierarchy can be attributed to the design of the Core Collection (Cristo-Araújo et al, 2015), since this was not designed primarily to study the origin and dispersal of peach palm, but to support the management of peach palm germplasm at INPA.…”

Section: Dispersal Of the Landrace Complexsupporting

confidence: 59%

“…The network and the tree also support a single domestication event in southwestern Amazonia, probably in the upper Madeira River basin of modern Bolivia, which had already been proposed as the center of domestication (Huber, 1904;Clement, 1995;Rodrigues et al, 2005;Cristo-Araújo et al, 2010, 2013Galluzzi et al, 2015). This is also one of the areas identified by Mora-Urpí (1993 and Hernández-Ugalde et al (2011).…”

Section: The Origin Of Domesticationsupporting

confidence: 56%

“…chichagui types 1 and 3). These accessions belong to the Core Collection designed by Cristo-Araújo et al (2015) (Henderson, 2000;Couvreur et al, 2007), were also genetically characterized to serve as out-groups.…”

Section: Core Collection For Genetic Analysis and Niche Modelingmentioning

confidence: 99%

“…Since then several hypotheses have proposed a single origin (Morcote-Rios and Bernal, 2001;Rodrigues et al, 2005;CristoAraújo et al, 2013;Galluzzi et al, 2015) or multiple origins (Mora-Urpí, 1999;Hernández-Ugalde et al, 2011). We will identify a problem in the systematic analysis that has influenced many of these hypotheses and is essential to understanding the origin of domesticated peach palm, then model the ecological niches of the wild populations, and expand our genetic analyses of the origin of the domesticated populations (Cristo-Araújo et al, 2013) to understand their dispersal. Henderson (2000) reduced the previously recognized nine species and three varieties in Martius' genus Guilielma into synonymy with B. gasipaes, and proposed two varieties: chichagui (H. Karsten) A.J.…”

Section: Introductionmentioning

confidence: 98%

“…chichagui type 3 as the incipient domesticate, following Clement et al (2009a), i.e., it represents the beginning of domestication of peach palm from type 1 (Cristo-Araújo et al, 2013;Galluzzi et al, 2015). Saldías-Paz (1993) observed exactly the expected type of variation in fruit size and human propagation in lowland Bolivia, where very small fruits similar to type 1, which he equated to G. microcarpa, were observed in open forests, small fruits similar to type 3, which he equated to G. insignis, were observed in anthropogenic forests and were tolerated when they appeared in swiddens, and only var.…”

Section: Introductionmentioning

confidence: 99%

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Origin and Dispersal of Domesticated Peach Palm

et al. 2017

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Peach palm (Bactris gasipaes Kunth) is a Neotropical palm domesticated by Native Americans. Its domestication resulted in a set of landraces (var. gasipaes), some with very starchy fruit used for fermentation, others with an equilibrium of starch and oil used as snacks. Which of the three wild types (var. chichagui) was involved and where the domestication process began are unclear, with three hypotheses under discussion: an origin in southwestern Amazonia; or in northwestern South America; or multiple origins. We reevaluate one of the wild types, defining it as the incipient domesticate, and then evaluate these hypotheses using the Brazilian peach palm Core Collection and selected herbaria samples to: (1) model the potential distributions of wild and domesticated populations; (2) identify the probable origin of domestication with a phylogeographic analysis of chloroplast DNA sequences; and (3) determine the dispersal routes after domestication using spatial analysis of genetic diversity based on 17 nuclear microsatellite loci. The two very small-fruited wild types have distinct distributions in the northern Andes region and across southern Amazonia, both under moderately humid climates, while the incipient domesticate, partly sympatric with the southern wild type, is also found along the Equatorial Andes, in a more humid climatic envelope, more similar to that of the domesticated landraces. Two distribution models for Last Glacial Maximum conditions (CCSM4, MIROC) also suggest distinct distributions for the two wild populations. The chloroplast DNA phylogeographic network confirms the area of sympatry of the incipient domesticate and the southern wild type in southwestern Amazonia as the origin of domestication. The spatial patterns of genetic diversity confirm the proposal of two dispersals, one along the Ucayali River, into western Amazonia, northwestern South America and finally Central America; the other along the Madeira River into central and then eastern Amazonia. The first dispersal resulted in very starchy fruit for fermentation, while the second may have been later and resulted in snack fruits. Further explorations of southwestern Amazonia are essential for more precise identification of the earliest events, both with new archeological methods and genetic analyses with larger samples.

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Section: Dispersal Of the Landrace Complexsupporting

confidence: 59%

Section: The Origin Of Domesticationsupporting

confidence: 56%

Section: Core Collection For Genetic Analysis and Niche Modelingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

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Origin and Dispersal of Domesticated Peach Palm

et al. 2017

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Genetic analysis identifies the region of origin of smuggled peach palm seeds

Cristo-Araújo

Molles

Rodrigues

et al. 2017

Forensic Science International

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An Integrated Hypothesis on the Domestication of Bactris gasipaes

et al. 2015

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Peach palm (Bactris gasipaes Kunth) has had a central place in the livelihoods of people in the Americas since pre-Columbian times, notably for its edible fruits and multi-purpose wood. The botanical taxon includes both domesticated and wild varieties. Domesticated var gasipaes is believed to derive from one or more of the three wild types of var. chichagui identified today, although the exact dynamics and location of the domestication are still uncertain. Drawing on a combination of molecular and phenotypic diversity data, modeling of past climate suitability and existing literature, we present an integrated hypothesis about peach palm’s domestication. We support a single initial domestication event in south western Amazonia, giving rise to var. chichagui type 3, the putative incipient domesticate. We argue that subsequent dispersal by humans across western Amazonia, and possibly into Central America allowed for secondary domestication events through hybridization with resident wild populations, and differential human selection pressures, resulting in the diversity of present-day landraces. The high phenotypic diversity in the Ecuadorian and northern Peruvian Amazon suggest that human selection of different traits was particularly intense there. While acknowledging the need for further data collection, we believe that our results contribute new insights and tools to understand domestication and dispersal patterns of this important native staple, as well as to plan for its conservation.

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Peach palm core collection in Brazilian Amazonia

Abstract: -The Peach palm Active Germplasm Bank has abundant genetic diversity in its holdings

Cited by 9 publications

References 13 publications

Origin and Dispersal of Domesticated Peach Palm

Origin and Dispersal of Domesticated Peach Palm

Genetic analysis identifies the region of origin of smuggled peach palm seeds

An Integrated Hypothesis on the Domestication of Bactris gasipaes

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