Quantitative Analysis of Floral Symmetry and Tube Dilation in an F2
Scientia Horticulturae 188 (2015) 71–77 Contents lists available at ScienceDirect Scientia Horticulturae journal homepage: www.elsevier.com/locate/scihorti Quantitative analysis of floral symmetry and tube dilation in an F2 cross of Sinningia speciosa a,1 e,1 c c d Hao-Chun Hsu , Chia-Ying Chen , Tzu-Kuei Lee , Li-Kang Weng , Der-Ming Yeh , c a,b,∗ c,∗∗ Ta-Te Lin , Chun-Neng Wang , Yan-Fu Kuo a Institute of Ecology and Evolutionary Biology, National Taiwan University, Taipei 106, Taiwan, ROC b Department of Life Science, National Taiwan University, Taipei 106, Taiwan, ROC c Department of Bio-Industrial Mechatronics Engineering, National Taiwan University, Taipei 106, Taiwan, ROC d Department of Horticulture and Landscape Architecture, National Taiwan University, Taipei 106, Taiwan, ROC e Department of Life Science, National Taiwan Normal University, Taipei 116, Taiwan, ROC a r t i c l e i n f o a b s t r a c t Article history: Shape variation within a flower breeding line is a topic of considerable interest to horticulturalists. Sin- Received 21 February 2014 ningia speciosa (Florist’s Gloxinia) is a species that presents diversified floral shapes. This study aimed Received in revised form 12 March 2015 to quantitatively assess floral shape variation in an F2 cross of S. speciosa between a zygomorphic wild Accepted 13 March 2015 variety and an actinomorphic peloric cultivar via geometric morphometrics. The result indicated sym- metric variation and tube dilation accounted for the major variance of floral shape changes. We further Keywords: tested whether these shape variations can be correlated to any inherited genetic variation.
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