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2019
Petry, Fabiane C.; Nadai, Fabio B.; Cristofani-Yaly, Mariângela; Latado, Rodrigo R.; Mercadante, Adriana Z.
In: Food Research International, vol. 122, pp. 461-470, 2019, ISSN: 0963-9969.
Abstract | Links | BibTeX | Tags: Carotenoid biosynthesis, Citrus carotenoids, Citrus hybrids, LC-MS, orange (Citrus sinensis) cv. ‘Pêra’ carotenoids, tangor (Citrus reticulata x Citrus sinensis) cv. ‘Murcott’ carotenoids
@article{Petry2019,
title = {Carotenoid biosynthesis and quality characteristics of new hybrids between tangor (Citrus reticulata x C. sinensis) cv. ‘Murcott’ and sweet orange (C. sinensis) cv. ‘Pêra’},
author = {Fabiane C. Petry and Fabio B. Nadai and Mariângela Cristofani-Yaly and Rodrigo R. Latado and Adriana Z. Mercadante},
doi = {10.1016/J.FOODRES.2019.04.035},
issn = {0963-9969},
year = {2019},
date = {2019-01-01},
journal = {Food Research International},
volume = {122},
pages = {461-470},
publisher = {Elsevier},
abstract = {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. ‘Pêra’. 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 β-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 μg/g dry weight [dw]) and β-cryptoxanthin (81–125 μg/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 (~158 μg/g dw) and β-cryptoxanthin (5–22 μg/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 μg/g dw versus 158–250 μg/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.},
keywords = {Carotenoid biosynthesis, Citrus carotenoids, Citrus hybrids, LC-MS, orange (Citrus sinensis) cv. ‘Pêra’ carotenoids, tangor (Citrus reticulata x Citrus sinensis) cv. ‘Murcott’ carotenoids},
pubstate = {published},
tppubtype = {article}
}
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. ‘Pêra’. 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 β-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 μg/g dry weight [dw]) and β-cryptoxanthin (81–125 μg/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 (~158 μg/g dw) and β-cryptoxanthin (5–22 μg/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 μg/g dw versus 158–250 μg/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.