Characterization of tropical mandarin collection: Implications for breeding related to fruit quality
2018
Nevesa, Claudia Garcia | Jordao Do Amarala, Daniel Oliveira | Barbosa de Paula, Marcia Fabiana | de Nascimento, Lucas Santana | Costantino, Gilles | Passos, Orlando Sampaio | Santos, Milena Do Amaral | Ollitrault, Patrick | Gesteira, Abelmon da Silva | François, Luro | Micheli, Fabienne | Universidade Estadual De Santa Cruz [Brazil] (UESC) | Instituto Nacional do Semiárido (INSA) | Univ Estadual Santa Cruz, DCB, CBG, Rodovia Ilheus Itabuna,Km 16, BR-45662900 Ilheus, BA, Brazil ; Partenaires INRAE | Univ Fed Mato Grosso, Av Alexandre Ferronato 1200, BR-78550728 Sinop, MT, Brazil ; Partenaires INRAE | Centro de Ciências Agrárias ; Universidade Federal de Santa Catarina = Federal University of Santa Catarina [Florianópolis] (UFSC) | Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP) ; Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro) | Empresa Brasileira de Pesquisa Agropecuária (Embrapa) ; Ministério da Agricultura, Pecuária e Abastecimento [Brasil] (MAPA) ; Governo do Brasil-Governo do Brasil | Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad) | Embrapa Mandioca & Fruticultura, Rua Embrapa S-N, BR-44380000 Cruz Das Almas, BA, Brazil ; Partenaires INRAE | Pesquisador Visitante Especial (PVE) program of the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) ; Coordenacao de Aperfeicoamento Pessoal de Nivel Superior (CAPES) ; Agropolis foundation (CAPES-Agropolis "Mandarin quality" project) ; CAPES ; CNPq ; Fundacao de Amparo a Pesquisa do Estado da Bahia (FAPESB)
International audience
اظهر المزيد [+] اقل [-]إنجليزي. During the last decade, the worldwide market for fresh citrus fruits, mainly those that are seedless with easy-peeling and nice orange-colored skin, greatly increased. The elaboration of organoleptic quality is strongly defined by genetic and environmental components and their interaction. While several mandarin breeding programs have been developed worldwide, very few focus on the issues of tropical areas, and few data are available for citrus germplasm evaluation in a tropical environment. To optimize the mandarin production system, research related to the exploration of existing citrus germplasm, the expansion of the genetic base of orchards and the evaluation of the agronomic potential of new genotypes must be conducted. The objective of this study was to characterize and evaluate 25 mandarin varieties from typical Brazilian tropical citrus germplasm according to genetic, morphological and physicochemical traits over two consecutive years. Simple correlation coefficient analysis showed significant positive and negative correlations among characteristics (e.g., fruit diameter and total soluble solids). Principal component analysis showed that fruit diameter, fruit weight, total soluble solids, total titratable acidity, fruit surface texture and adherence of albedo to pulp were the variables that most contributed to phenotypic variability. Genetic diversity analysis grouped accessions in four main clusters corresponding to traditional edible Chinese mandarins, Mediterranean mandarins, tangelos and tango hybrids and nonedible mandarins. A multiple factorial analysis showed that phenotypic diversity was associated with genetic diversity mainly for taste, shape and color traits. The results of this study will be used for the conservation of the indigenous germplasm, identification of varieties with valuable traits related to fruit quality and subsequent exploitation in citrus breeding programs.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
المعلومات البيبليوغرافية
تم تزويد هذا السجل من قبل Institut national de la recherche agronomique