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Kirtley, Lauren [1], Ogoti, Tasha [2], Pisias, Michael [2], Pires, Chris [2].

Turnips and Traits: Analyzing phenotypic diversity in Brassica rapa.

Brassica rapa is a diverse species that includes important domesticate varieties including turnip, bok choy, and rapini. In some cases, populations of B. rapa have escaped domesticated crop fields and undergone feralization, a process by which domesticated plants revert to or adapt to fit a new environment including things like extreme temperatures, poor soil quality, diseases, and pests that are not pressures on crop fields. These adaptations are of interest to us due to the possibility of future application in breeding or genetic engineering approaches to produce more hardy crops. Utilizing the traits that increase the fitness of ferals in their domestic crop relatives could help to deal with mounting pressures like global warming. Studies on the origins of B. rapa are limited, but we believe that most domesticates of B. rapa originated from an initial turnip morphotype. However, more work is needed to fully disentangle these relationships. We will collect leaf morphological data consisting of scans from the seventh leaf in a subset of B. rapa accessions in our germplasm collection. Scanned leaves will be analyzed using R to determine their leaf shape phenotype. We will use this data to evaluate the similarities of leaf shape across domesticates, ferals, and wild B. rapa. Our sample will include 12 different accessions from the grelos, rapini, weedy CSI and Spanish turnips varieties; we will grow 4 plants for each accession. Then, we will compare with leaf data from commonly grown crop species like turnip, bok choy, and rapini. With this data we will construct a dendrogram to compare with evolutionary hypotheses from genetic data. In the future, we hope to evaluate potential phenotypes of interest with multiple-omics approaches to analyze and refine our conclusions.

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1 - University of Missouri, Division of Biological Sciences, 1201 Rollins St, 311 Bond Life Sciences Center, Columbia, MO, 65211, USA
2 - University of Missouri, Division of Biological Sciences, 1201 Rollins St, 311 Bond Life Sciences Center, Columbia, MO, 65211, United States

crop relatives
Population Genetics.

Presentation Type: Poster
Session: P3, Systematics Posters
Location: Virtual/Virtual
Date: Wednesday, July 21st, 2021
Time: 5:00 PM(EDT)
Number: P3SY007
Abstract ID:613
Candidate for Awards:None

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