scholarly journals Mechanisms of a locally adaptive shift in allocation among growth, reproduction, and herbivore resistance in Mimulus guttatus *

Evolution ◽  
2019 ◽  
Vol 73 (6) ◽  
pp. 1168-1181 ◽  
Author(s):  
David B. Lowry ◽  
Damian Popovic ◽  
Darlene J. Brennan ◽  
Liza M. Holeski
Keyword(s):  
Mimulus Guttatus ◽  
Herbivore Resistance ◽  
Adaptive Shift ◽  
Locally Adaptive

scholarly journals Mechanisms of a locally adaptive shift in allocation among growth, reproduction, and herbivore resistance in Mimulus guttatus

2018 ◽  
Author(s):  
David B. Lowry ◽  
Damian Popovic ◽  
Darlene J. Brennan ◽  
Liza M. Holeski
Keyword(s):  
Environmental Gradients ◽  
Evolutionary Divergence ◽  
Mimulus Guttatus ◽  
Herbivore Resistance ◽  
Substantial Impact ◽  
Plant Resource ◽  
Adaptive Shift ◽  
Locally Adaptive ◽  
Phytochemical Compounds ◽  
Developmental Divergence

ABSTRACTEnvironmental gradients can drive adaptive evolutionary shifts in plant resource allocation among growth, reproduction, and herbivore resistance. However, few studies have attempted to connect these adaptations to underlying physiological and genetic mechanisms. Here, we evaluate potential mechanisms responsible for a coordinated locally adaptive shift between growth, reproduction, and herbivore defense in the yellow monkeyflower, Mimulus guttatus. Through manipulative laboratory experiments we found that gibberellin (GA) growth hormones may play a role in the developmental divergence between perennial and annual ecotypes of M. guttatus. Further, we detected an interaction between a locally adaptive chromosomal inversion, DIV1, and GA addition. This finding is consistent with the inversion contributing to the evolutionary divergence between inland annual and coastal perennial ecotypes by reducing GA biosynthesis/activity in perennials. Finally, we found evidence that the DIV1 inversion is partially responsible for a coordinated shift in the divergence of growth, reproduction, and herbivore resistance traits between coastal perennial and inland annual M. guttatus. The inversion has already been established to have a substantial impact on the life-history shift between long-term growth and rapid reproduction. Here, we demonstrate that the DIV1 inversion also has sizable impacts on both the total abundance and composition of phytochemical compounds involved in herbivore resistance.

scholarly journals Population responses to a historic drought across the range of the common monkeyflower ( Mimulus guttatus )

2021 ◽  
Author(s):  
Nicholas J. Kooyers ◽  
Kelsie A. Morioka ◽  
Jack M. Colicchio ◽  
Kaitlyn S. Clark ◽  
Abigail Donofrio ◽  
...  
Keyword(s):  
Mimulus Guttatus ◽  
Population Responses ◽  
The Common

scholarly journals Population genomic and historical analysis suggests a global invasion by bridgehead processes in Mimulus guttatus

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Mario Vallejo-Marín ◽  
Jannice Friedman ◽  
Alex D. Twyford ◽  
Olivier Lepais ◽  
Stefanie M. Ickert-Bond ◽  
...  
Keyword(s):  
Biological Invasions ◽  
Historical Analysis ◽  
Historical Records ◽  
British Isles ◽  
Mimulus Guttatus ◽  
Introduced Populations ◽  
Genome Wide ◽  
Starting Point ◽  
History Of ◽  
Global Invasion

AbstractImperfect historical records and complex demographic histories present challenges for reconstructing the history of biological invasions. Here, we combine historical records, extensive worldwide and genome-wide sampling, and demographic analyses to investigate the global invasion of Mimulus guttatus from North America to Europe and the Southwest Pacific. By sampling 521 plants from 158 native and introduced populations genotyped at >44,000 loci, we determined that invasive M. guttatus was first likely introduced to the British Isles from the Aleutian Islands (Alaska), followed by admixture from multiple parts of the native range. We hypothesise that populations in the British Isles then served as a bridgehead for vanguard invasions worldwide. Our results emphasise the highly admixed nature of introduced M. guttatus and demonstrate the potential of introduced populations to serve as sources of secondary admixture, producing novel hybrids. Unravelling the history of biological invasions provides a starting point to understand how invasive populations adapt to novel environments.

scholarly journals Highly localized and persistent induction of Bx1 -dependent herbivore resistance factors in maize

2016 ◽  
Vol 88 (6) ◽  
pp. 976-991 ◽  
Author(s):  
Daniel Maag ◽  
Angela Köhler ◽  
Christelle A.M. Robert ◽  
Monika Frey ◽  
Jean-Luc Wolfender ◽  
...  
Keyword(s):  
Herbivore Resistance ◽  
Resistance Factors
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