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ARS Home » Midwest Area » Madison, Wisconsin » Vegetable Crops Research » Research » Publications at this Location » Publication #360145
Research Project: Trait Discovery, Genetics, and Enhancement of Allium, Cucumis, and Daucus Germplasm

Location: Vegetable Crops Research

Title: Confirmation of significant parent-of-origin effects in cucumber

Author
item OLBERG, MADELINE - University Of Wisconsin
item Havey, Michael

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 9/1/2018
Publication Date: 11/12/2018
Citation: Olberg, M., Havey, M.J. 2018. Confirmation of significant parent-of-origin effects in cucumber. Meeting Abstract. pp. 29. Available: http://cucurbit2018.ucdavis.edu/wp-content/uploads/2018/10/2018_Cucurbits_Abstracts_Book.pdf

Interpretive Summary:

Technical Abstract: Cucumber is a useful plant to study organellar effects on growth and development because chloroplasts are maternally and mitochondria paternally transmitted. Multiple doubled haploids (DH) were produced from four divergent cucumber populations, reciprocal crosses were made in a diallel mating scheme, and sizes of seeds and cotyledons and weights of plants approximately 25 days after planting were measured. General (GCA) and specific (SCA) combining abilities and reciprocal effects were highly significant. Fresh and dry weights were significantly different for specific reciprocal hybrids with identical nuclear genotypes, and revealing significant parent-of-origin effects. Reciprocal hybrids from crosses among multiple DHs extracted from the same cucumber cultivars were not consistent for early plant growth, indicating that parent-of-origin effects were specific to individual DHs and not to the population per se. These results further support reciprocal crossing of cucumber DHs and inbreds to identify the best performing hybrids.