Universität zu Köln

Beddows, Ian and Rose, Laura E. (2018). Factors determining hybridization rate in plants: A case study in Michigan. Perspect. Plant Ecol. Evol. Syst., 34. S. 51 - 61. MUNICH: ELSEVIER GMBH. ISSN 1433-8319

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Abstract

Hybridization is an important and creative process in plant evolution, but the factors that are associated with hybridization have not been systematically determined. In this study, we first quantify hybridization frequency in the Field Manual of Michigan Flora and then test multiple ecological and physiological variables for an association with hybridization using multiple logistic regression and other methods. From our data, more than 17% of species produce hybrids with other species in the wild. There was no systematic association between phylogeny and hybridization rate, but taxonomic order was a significant independent variable in the regression model and the majority of hybrids were restricted to a handful of taxonomic groups. Life history, life form, and habitat disturbance were all significant explanatory variables for hybridization likelihood. Nearly 97% of hybridizing taxa were perennial with fern allies and woody groups found to hybridize the most. The data also indicate that the rate of hybridization increased with greater ecological disturbance. Interestingly, hybridization rate was positively correlated with the number of herbarium collections and this is potentially a confounding variable in quantifying the true frequency of hybridization.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Beddows, Ian UNSPECIFIED UNSPECIFIED UNSPECIFIED Rose, Laura E. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-171337
DOI:	10.1016/j.ppees.2018.07.003
Journal or Publication Title:	Perspect. Plant Ecol. Evol. Syst.
Volume:	34
Page Range:	S. 51 - 61
Date:	2018
Publisher:	ELSEVIER GMBH
Place of Publication:	MUNICH
ISSN:	1433-8319
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EVOLUTIONARY CONSEQUENCES; ORIGIN; SPECIATION; DIVERGENCE; NUCLEAR; FLORA; DNA; BIOGEOGRAPHY; DIVARICARPA; ANGIOSPERMS Multiple languages Plant Sciences; Ecology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/17133