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231225s2019 xx |||||o 00| ||eng c |
| 024 |
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|a 10.1111/nph.15844
|2 doi
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|a pubmed24n0986.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Kostyun, Jamie L
|e verfasserin
|4 aut
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| 245 |
1 |
2 |
|a A simple genetic architecture and low constraint allow rapid floral evolution in a diverse and recently radiating plant genus
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|c 2019
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 17.03.2020
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2019 The Authors. New Phytologist © 2019 New Phytologist Trust.
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|a Genetic correlations among different components of phenotypes, especially those resulting from pleiotropy, can constrain or facilitate trait evolution. These factors could especially influence the evolution of traits that are functionally integrated, such as those comprising the flower. Indeed, pleiotropy is proposed as a main driver of repeated convergent trait transitions, including the evolution of phenotypically similar pollinator syndromes. We assessed the role of pleiotropy in the differentiation of floral and other reproductive traits between two species - Jaltomata sinuosa and J. umbellata (Solanaceae) - that have divergent suites of floral traits consistent with bee and hummingbird pollination, respectively. To do so, we generated a hybrid population and examined the genetic architecture (trait segregation and quantitative trait locus (QTL) distribution) underlying 25 floral and fertility traits. We found that most floral traits had a relatively simple genetic basis (few, predominantly additive, QTLs of moderate to large effect), as well as little evidence of antagonistic pleiotropy (few trait correlations and QTL colocalization, particularly between traits of different classes). However, we did detect a potential case of adaptive pleiotropy among floral size and nectar traits. These mechanisms may have facilitated the rapid floral trait evolution observed within Jaltomata, and may be a common component of rapid phenotypic change more broadly
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a Research Support, Non-U.S. Gov't
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| 650 |
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4 |
|a Jaltomata
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| 650 |
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4 |
|a QTL mapping
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| 650 |
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4 |
|a Solanaceae
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| 650 |
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4 |
|a floral evolution
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| 650 |
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4 |
|a genetic covariation
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| 650 |
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4 |
|a pleiotropy
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| 650 |
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4 |
|a quantitative trait locus (QTL) colocalization
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| 700 |
1 |
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|a Gibson, Matthew J S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a King, Christian M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Moyle, Leonie C
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t The New phytologist
|d 1979
|g 223(2019), 2 vom: 15. Juli, Seite 1009-1022
|w (DE-627)NLM09818248X
|x 1469-8137
|7 nnns
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| 773 |
1 |
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|g volume:223
|g year:2019
|g number:2
|g day:15
|g month:07
|g pages:1009-1022
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| 856 |
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|u http://dx.doi.org/10.1111/nph.15844
|3 Volltext
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