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IVES 9 IVES Conference Series 9 Leaf elemental composition in a replicated hybrid grape progeny grown in distinct climates

Leaf elemental composition in a replicated hybrid grape progeny grown in distinct climates

Abstract

The elemental composition (the ionome) of grape leaves is an important indicator of nutritional health, but its genetic architecture has received limited scientific attention. In this study, we analyzed the leaf ionome of 131 interspecific F1 hybrid progeny from a Vitis rupestris (♀) X Vitis riparia (♂) cross. The progeny were replicated in New York, South Dakota, Southwest Missouri ad Central Missouri, and the concentration of 20 elements were measured in their leaves at three different phenological stages during the growing season. In leaves collected at the apical node at anthesis, elemental concentrations correlated in a consistent manner (p < 0.05) across all four geographic locations. In subsequent phenological stages, elemental ratios in the apical-node leaves remained consistent across the South Dakota and New York sites, but not across the Missouri sites. In leaves collected at the basal and middle nodes, correlations varied greatly across all locations. Varimax-rotated PCA performed on the leaf ionome separated the two Missouri vineyards from their New York and South Dakota counterparts, even though the first two principal components accounted for only 27.8% of the variance. Using a GBS-based linkage map and the concentration of individual elements as phenotype, we were able to map nine QTL which could be detected at more than one vineyard locations. We were also able detect a QTL when we applied ionomic profile-derived PC1 scores as phenotype. Interestingly, this PCA-derived QTL mapped to the same locus as the QTL for potassium concentration.

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DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Jesse Krokower1, Courteny Coleman1, Courtney Duncan1, Zachary Harris2, Samantha Mazumder2, Anne Fennell3, Allison Miller2, Jason Londo4, Misha Kwasniewski5, Laszlo Kovacs1*

1 Department of Biology, Missouri State University, Springfield, MO USA
2 Donald Danforth Plant Science Center, St. Louis, MO USA
3 Department of Plant Science, South Dakota State University, Brookings, SD USA
4 School of Integrative Plant Science, Cornell University, Geneva, NY USA
5 Department of Food Science, Pennsylvania State University, University Park, PA USA

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Keywords

Ionome, mineral nutrition, quantitative trait loci, Vitis rupestris, Vitis riparia

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

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