| Title: | Variation and Natural Heritability of Blueberry Floral Volatiles |
| Author(s): | Huber G; Bohlmann J; Ritland K; |
| Address: | "Department of Forest and Conservation Sciences, University of British Columbia, 3041-2424 Main Mall, Vancouver, British Columbia V6T 1Z4, Canada. Michael Smith Laboratories, University of British Columbia, 301-2185 East Mall, Vancouver, British Columbia V6T 1Z4, Canada" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "Vaccinium corymbosum (highbush blueberry) in British Columbia relies on honeybee pollination for a reliable fruit set. As floral volatiles may help explain pollinator preference for blueberry, we surveyed components of variation for volatiles using gas chromatography-mass spectrometry (GC/MS). Principal component analysis of GC chromatogram peaks revealed a grouping of cultivars by a biosynthetic pathway that also corresponds with their known pedigree. To identify genetic variance, we identified 34 chemicals with adequate sample sizes. We estimated 'natural heritability' (using uncontrolled crosses in natural environments) in two ways: (1) as 'clonal repeatability,' which is equivalent to broad-sense heritability and is an upper bound for narrow-sense heritability, and (2) 'marker-based heritability,' which serves as a lower bound for narrow-sense heritability. Both methods indicate that heritability is relatively low, ca. 15%, and variable among traits. This is expected as the floral volatile release is changeable and dependent on environmental conditions. It might be possible to use highly heritable volatiles for breeding" |
| Keywords: | Animals Bees/genetics *Blueberry Plants/genetics/chemistry Plant Breeding Pollination Phenotype Gas Chromatography-Mass Spectrometry blueberry heritability relatedness; |
| Notes: | "MedlineHuber, Gwen Bohlmann, Joerg Ritland, Kermit eng 2023/05/18 J Agric Food Chem. 2023 May 31; 71(21):8121-8128. doi: 10.1021/acs.jafc.2c06703. Epub 2023 May 18" |
