Participatory research with<i>Acca sellowiana</i>: Stimulating the breeding process for a native fruit species

Santos, Karine Louise dos; Donazzolo, Joel; Guries, Raymond P.; Peroni, Nivaldo; Nodari, Rubens Onofre

doi:10.1080/21683565.2017.1373383

Cited by 14 publications

(14 citation statements)

References 21 publications

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“…Experiências no programa de melhoramento genético participativo da goiabeira-serrana indicaram que os principais critérios escolhidos pelos agricultores foram fruto de maior tamanho, maior rendimento de polpa e sabor (DONAZZOLO, 2012;SANTOS et al, 2017). Uma estratégia de promoção da goiabeiraserrana junto a produtores da região de São Joaquim foi a alocação de mudas em propriedades agrícolas com o intuito de avaliar a adaptação dos materiais, ao mesmo tempo em que os produtores se familiarizavam com seu manejo (SANTOS et al, 2018).…”

Section: Introductionunclassified

Avaliação de frutos de goiabeira-serrana cultivados no meio oeste de Santa Catarina, Brasil

Sánchez-Mora¹,

Saifert²,

Petry³

et al. 2020

Biotemas

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O objetivo do presente estudo foi determinar o comportamento das características físico-químicas dos frutos de sete genótipos de goiabeira-serrana cultivados em dois locais em Santa Catarina. A avaliação foi realizada nas safras 2011/12, 2014/15 e 2015/16 nos genótipos 85, 101, 223, 458 e 509, na localidade de Fraiburgo (comunidade Papuã), e nas safras 2014/15 e 2015/16, nos genótipos 28.12 e 527, na localidade de Água Doce (comunidade Vista Alegre). Foram avaliados diâmetro (cm), comprimento (cm) e peso do fruto (g), peso de casca e polpa (g), espessura de casca (mm) e sólidos solúveis totais (grau Brix). Foram realizadas análise de variância, comparação entre médias pelo teste Tukey (p < 0,05) e correlações de Pearson (p < 0,05) entre as características dos frutos. Em Água Doce, o genótipo 527 registrou o maior diâmetro e peso do fruto (88,7 g). Em Fraiburgo, destacou-se o genótipo 85, que registrou o maior peso de fruto (94,9 g) e 509 com maior rendimento de polpa (37,5%). Foi constatado que nem todos os genótipos com maior peso do fruto foram os que obtiveram maior rendimento de polpa, confirmando que as variáveis espessura da casca e tamanho do fruto estão diretamente relacionadas com o rendimento. A variação nos valores de sólidos solúveis totais foi afetada pela influência do ambiente e do genótipo.

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Section: Introductionunclassified

Avaliação de frutos de goiabeira-serrana cultivados no meio oeste de Santa Catarina, Brasil

Sánchez-Mora¹,

Saifert²,

Petry³

et al. 2020

Biotemas

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“…In situ on farm, the populations of the participatory genetic breeding (Donazzolo et al., 2020; Santos, Donazzolo, Guries, Peroni, & Nodari, 2017) are of greater interest for conservation since they are mainly cultivated in agroforestry systems in Ipê, Antônio Prado, and Monte Alegre dos Campos‐RS. Overall, those populations store 26 alleles, most of which are missing from the AGB‐Feijoa.…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the genetic diversity in the feijoa accessions maintained at Santa Catarina, Brazil

et al. 2020

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Feijoa [Acca sellowaiana (O. Berg) Burret], also known as pineapple guava or goiabeira‐serrana, is a species of the Myrtaceae family native to southern Brazil and Uruguay. The genetic diversity of feijoa's natural populations has been studied and is relatively well‐documented; however, the genetic diversity of feijoa accessions in the largest active germplasm bank (AGB) in Brazil, and is still poorly documented. Characterizing and conserving pineapple guava accessions present in the AGB is essential for developing breeding programs and conserving the diversity of the species. Thus, the objective of this study was to characterize the genetic diversity of all accessions using eight microsatellite markers. The AGB collection includes accessions from 26 municipalities in Brazil, New Zealand, the United States, Israel, and Uruguay; selected clones, and selections of directed crossings, totaling 313 accessions. Genotyping 309 of these accessions with eight microsatellite markers revealed 119 alleles. Polymorphism information content (PIC) values varied between .466 (ASE40) and .890 (ASE34) with an overall mean of .718. This genotyping confirms the existence of two main types or biotypes in the species, denoted as the Uruguay type and Brazil type. Also, a significant proportion of the feijoa diversity, which is absent from the AGB‐Feijoa collection, is present in germplasm maintained by indigenous people, quilombola communities, federal conservation units, participatory genetic breeding, and areas of natural occurrence, thus reinforcing the need to introduce new accessions into São Joaquim's AGB‐Feijoa.

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“…At focal individual scale, this relationship also was highlighted because: (1) the fruit removal on Feijoa domesticated was circa 45% more than observed in Feijoas without evidence of domestication; (2) no Feijoa tree had 100% of fruit removal, suggesting that the removal in both conditions could be larger than observed; and (3) the number of species that performed frugivory in domesticated Feijoas was 25% larger than in “under-domesticated” trees. Furthermore, domestication activities ensure the genetic diversity of Feijoa that is maintained in situ (native forests) and/or on farms [ 38 , 53 ]. Feijoa presents a low effect of endogamy, large genetic divergence among the populations and high incidence of rare and exclusive alleles among some populations within the highlands (including our sites S1 and S2) of subtropical Atlantic Forest [ 39 ], a strong indicative of the anthropic activities of management on species and local landscapes [ 23 , 38 , 39 , 53 ].…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, domestication activities ensure the genetic diversity of Feijoa that is maintained in situ (native forests) and/or on farms [ 38 , 53 ]. Feijoa presents a low effect of endogamy, large genetic divergence among the populations and high incidence of rare and exclusive alleles among some populations within the highlands (including our sites S1 and S2) of subtropical Atlantic Forest [ 39 ], a strong indicative of the anthropic activities of management on species and local landscapes [ 23 , 38 , 39 , 53 ].…”

Section: Discussionmentioning

confidence: 99%

The ecological footprint of Acca sellowiana domestication maintains the residual vertebrate diversity in threatened highlands of Atlantic Forest

2018

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Past and contemporary human actions are causing numerous changes in patterns and processes at various ecosystem scales and trophic levels, including unintended downstream changes, such as species interactions. In its native range Acca sellowiana (Feijoa) combines some characteristics of human interactions: incipient domestication, restricted to subtropical Atlantic Forest highlands, associated with the threatened conifer Araucaria angustifolia (Araucaria), within a domesticated landscape with anthropogenic forest patches, and provides fruit at a time of resource shortage (Araucaria seeds—pinhão). We quantify the trophic relationships between Feijoa and vertebrates, and evaluate the influences on interactions caused by environmental variations, Feijoa domestication evidences, spatial distance and fruit availability. In four sites within protected areas, we selected 28 focal individuals of Feijoa (seven/site) and collected three temporal replicas between 2015 and 2016, when we measured productivity and frugivory via 45-second videos taken with camera traps. Using ecological network, rarefaction curves and variation partitioning analyses, we evaluate the frugivory network topology, the spatiotemporal structure of communities in relation to fruit availability and the influence of predictive variables on frugivory. We found a large spatiotemporal variation in productivity of Feijoa and that 20 species consumed Feijoa fruits, with a species degree of 2.8 (±5.7) and average Feijoa degree of 14.4 (±10.1), in a modular network with intermediary connectance. Rarefaction curves showed that richness and the independent records are congruent with the fruit amount. Variation partitioning showed that, for the focal individuals, canopy area, green coverage, patch size and distance to water influenced frugivory, and the Feijoa domestication influenced significantly the mammalian frugivory. Feijoa is an important resource that provides food during the time of year when Pinhão is absent, and attracts frugivores, maintain the residual diversity of vertebrates contributing to the structure of communities in highlands. Our insights allowed us to evaluate the magnitude of the interactions between vertebrates and an incipient domesticated tree, in a cultural landscape and highly threatened environment, under a basal foodweb approach with implications for bottom-up and top-down forces. The results contribute to understanding animal-plant relationships, including concepts that can be replicated for other sessile prey and mobile predators in any region or habitat under different gradients of management. Thus, this work shows how human actions can change not only patterns of distribution and abundance but also the diversity and direction of interspecific interactions among species.

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Participatory research withAcca sellowiana: Stimulating the breeding process for a native fruit species

Cited by 14 publications

References 21 publications

Avaliação de frutos de goiabeira-serrana cultivados no meio oeste de Santa Catarina, Brasil

Avaliação de frutos de goiabeira-serrana cultivados no meio oeste de Santa Catarina, Brasil

Evaluation of the genetic diversity in the feijoa accessions maintained at Santa Catarina, Brazil

The ecological footprint of Acca sellowiana domestication maintains the residual vertebrate diversity in threatened highlands of Atlantic Forest

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