Plastic expression of heterochrony quantitative trait loci (hQTLs) for leaf growth in the common bean (Phaseolus vulgaris)

© 2015 The Authors. New Phytologist © 2015 New Phytologist Trust.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 207(2015), 3 vom: 04. Aug., Seite 872-82
1. Verfasser: Jiang, Libo (VerfasserIn)
Weitere Verfasser: Clavijo, Jose A, Sun, Lidan, Zhu, Xuli, Bhakta, Mehul S, Gezan, Salvador A, Carvalho, Melissa, Vallejos, C Eduardo, Wu, Rongling
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. common bean (Phaseolus vulgaris) functional mapping heterochrony heterochrony quantitative trait loci (hQTLs) quantitative trait loci (QTLs) Soil
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520 |a Heterochrony, that is, evolutionary changes in the relative timing of developmental events and processes, has emerged as a key concept that links evolution and development. Genes associated with heterochrony encode molecular components of developmental timing mechanisms. However, our understanding of how heterochrony genes alter the expression of heterochrony in response to environmental changes remains very limited. We applied functional mapping to find quantitative trait loci (QTLs) responsible for growth trajectories of leaf area and leaf mass in the common bean (Phaseolus vulgaris) grown in two contrasting environments. We identified three major QTLs pleiotropically expressed under the two environments. Further characterization of the temporal pattern of these QTLs indicates that they are heterochrony QTLs (hQTLs) in terms of their role in influencing four heterochronic parameters: the timing of the inflection point, the timing of maximum acceleration and deceleration, and the duration of linear growth. The pattern of gene action by the hQTLs on each parameter was unique, being environmentally dependent and varying between two allometrically related leaf growth traits. These results provide new insights into the complexity of genetic mechanisms that control trait formation in plants and provide novel findings that will be of use in studying the evolutionary trends 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
650 4 |a common bean (Phaseolus vulgaris) 
650 4 |a functional mapping 
650 4 |a heterochrony 
650 4 |a heterochrony quantitative trait loci (hQTLs) 
650 4 |a quantitative trait loci (QTLs) 
650 7 |a Soil  |2 NLM 
700 1 |a Clavijo, Jose A  |e verfasserin  |4 aut 
700 1 |a Sun, Lidan  |e verfasserin  |4 aut 
700 1 |a Zhu, Xuli  |e verfasserin  |4 aut 
700 1 |a Bhakta, Mehul S  |e verfasserin  |4 aut 
700 1 |a Gezan, Salvador A  |e verfasserin  |4 aut 
700 1 |a Carvalho, Melissa  |e verfasserin  |4 aut 
700 1 |a Vallejos, C Eduardo  |e verfasserin  |4 aut 
700 1 |a Wu, Rongling  |e verfasserin  |4 aut 
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773 1 8 |g volume:207  |g year:2015  |g number:3  |g day:04  |g month:08  |g pages:872-82 
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