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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Carotenoid biosynthesis and quality characteristics of new hybrids between tangor (Citrus reticulata x C. sinensis) cv. `Murcott' and sweet orange (C. sinensis) cv. `Pera'

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Petry, Fabiane C. [1] ; de Nadai, Fabio B. [2] ; Cristofani-Yaly, Mariangela [2] ; Latado, Rodrigo R. [2] ; Mercadante, Adriana Z. [1]
Total Authors: 5
[1] Univ Estadual Campinas, UNICAMP, Fac Food Engn, Food Res Ctr FoRC, Dept Food Sci, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil
[2] Inst Agron IAC, Ctr Citricultaua Sylvio Moreira, Rodovia Anhanguera, Km 158, BR-13490970 Cordeiropolis, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Food Research International; v. 122, p. 461-470, AUG 2019.
Web of Science Citations: 5

Phenotypic characteristics, as well as the relation between carotenoid accumulation and gene expression during ripening were determined in fruits of five new hybrids between tangor cv. `Murcott' and sweet orange cv. `Pera'. The genotypes were classified into the orange-like group, showing mainly epoxycarotenoids, oval fruit shape and yellowish color, or in the mandarin-like group, showing mainly beta-cryptoxanthin, flattened shape and deep orange coloration; although some hybrids presented intermediate characteristics. The diversity in carotenoid composition of hybrids and genitors were mostly explained by patterns of gene expression. High carotenoid (250-426 mu g/g dry weight {[}dw]) and beta-cryptoxanthin (81-125 mu g/g dw) contents, observed in the mandarin-like group, were generally associated with high expression of upstream genes (GGPPS1, PSY, PDS). On the other hand, low expression/repression of these genes and high expression of downstream genes (BCHX and ZEP) were associated with low carotenoid (similar to 158 mu g/g dw) and beta-cryptoxanthin (5-22 mu g/g dw) contents and epoxycarotenoid accumulation, as occurred in the orange-like group. Breeding experiments resulted in hybrids with outstanding higher carotenoid contents than both genitors (up to 426 mu g/g dw versus 158-250 mu g/g dw in genitors), which was attributed to transgressive segregation. Differences among genotypes have great impact on commercial fruit quality and potential health benefits, such as the provitamin A content. (AU)

FAPESP's process: 17/08648-0 - Study of alterations in the INFOGEST in vitro digestion protocol and of exogenous lipid addition on the bioaccessibility and hydrolysis of carotenoid esters
Grantee:Fabiane Cristina Petry
Support Opportunities: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 18/23752-1 - Multi0user equipment approved in grant 2013/07914-8: high-speed liquid chromatography coupled to arrangement of diodes, fluorescence and masses
Grantee:Adriana Zerlotti Mercadante
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 13/07914-8 - FoRC - Food Research Center
Grantee:Bernadette Dora Gombossy de Melo Franco
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 14/50880-0 - INCT 2014: comparative and functional genomics and citrus-assisted breeding
Grantee:Marcos Antonio Machado
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 18/00133-4 - Trials with citrandarins as rootstock for the Pêra and Valencia sweet oranges and the Tahiti acid lime
Grantee:Mariângela Cristofani-Yaly
Support Opportunities: Regular Research Grants
FAPESP's process: 11/18605-0 - Obtaining and evaluation of new varieties of scion and rootstock for citrus
Grantee:Mariângela Cristofani-Yaly
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 13/09804-5 - Carotenoids and carotenoid esters in different Citrus cultivars: composition, bioacessibility and changes during ripeness
Grantee:Fabiane Cristina Petry
Support Opportunities: Scholarships in Brazil - Doctorate