| Title: | Volatilome-Genome-Wide Association Study on Wholemeal Maize Flour |
| Author(s): | Alves ML; Bento-Silva A; Gaspar D; Paulo M; Brites C; Mendes-Moreira P; Bronze MDR; Malosetti M; van Eeuwijk F; Vaz Patto MC; |
| Address: | "Instituto de Tecnologia Quimica e Biologica Antonio Xavier, Universidade Nova de Lisboa, Av. da Republica, Quinta do Marques, Oeiras 2780-157, Portugal. Faculdade de Farmacia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa 1649-003, Portugal. Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, Campus da Caparica, Caparica 2829-516, Portugal. Instituto Politecnico de Coimbra-Escola Superior Agraria, Bencanta, Coimbra 3045-601, Portugal. Instituto de Biologia Experimental e Tecnologica, Av. da Republica, Quinta do Marques, Oeiras 2780-157, Portugal. Biometris-Applied Statistics, Wageningen University, Radix, Building 107, Droevendaalsesteeg 1, 6708 PB Wageningen, Netherlands" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "Odor and aroma, resulting from the perception of volatiles by the olfactory receptors, are important in consumer food acceptance. To develop more efficient molecular breeding tools to improve the odor/aroma on maize (Zea mays L.), a staple food crop, increasing the knowledge on the genetic basis of maize volatilome is needed. In this work, we conducted a genome-wide association study on a unique germplasm collection to identify genomic regions controlling maize wholemeal flour's volatilome. We identified 64 regions on the maize genome and candidate genes controlling the levels of 15 volatiles, mainly aldehydes. As an example, the Zm00001d033623 gene was within a region associated with 2-octenal (E) and 2-nonenal (E), two byproducts of linoleic acid oxidation. This gene codes for linoleate 9S-lipoxygenase, an enzyme responsible for oxidizing linoleic acid. This knowledge can now support the development of molecular tools to increase the selection efficacy/efficiency of these volatiles within maize breeding programs" |
| Keywords: | "Flour/*analysis *Genome, Plant Genome-Wide Association Study Genomics Odorants/analysis Plant Proteins/genetics/metabolism Volatile Organic Compounds/*chemistry/metabolism Zea mays/chemistry/*genetics/metabolism Portuguese maize germplasm Zea mays L.alde;" |
| Notes: | "MedlineAlves, Mara Lisa Bento-Silva, Andreia Gaspar, Daniel Paulo, Manuel Brites, Claudia Mendes-Moreira, Pedro Bronze, Maria do Rosario Malosetti, Marcos van Eeuwijk, Fred Vaz Patto, Maria Carlota eng 2020/06/24 J Agric Food Chem. 2020 Jul 22; 68(29):7809-7818. doi: 10.1021/acs.jafc.0c01273. Epub 2020 Jul 8" |
