caa a22 4500 445323345 CHVBK 20180317142711.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10681-010-0248-2 doi (NATIONALLICENCE)springer-10.1007/s10681-010-0248-2 Creating novel chrysanthemum germplasm via interspecific hybridization and backcrossing [Elektronische Daten] [Xi Cheng, Sumei Chen, Fadi Chen, Yanming Deng, Weimin Fang, Fangping Tang, Zhaolei Liu, Wei Shao] The interspecific cross between Chrysanthemum×grandiflorum (Ramat.) Tzvel. ‘rm20-12' (R, 2n=54) and C. makinoi Matsum., and Nakai (M, 2n=18) was achieved using embryo rescue, and a single backcross progeny using C.×grandiflorum ‘rm20-12' as paternal parent was obtained. The morphology of the two independent F1 hybrids (MR1 and MR2) differed from that of both parents. MR1 had a larger inflorescence diameter along with narrow leaves and a reduced number of ray and tubular florets. MR2 was shorter and its inflorescence developed fewer tubular florets than either M or R. The BC1F1 hybrid was similar to its maternal plant MR2 in terms of leaf length and width, inflorescence diameter and the number of ray florets, while it produced fewer tubular florets than either MR2 or R. The flower color in both F1 hybrids was lavender, while the BC1F1 plant bore purple flowers. The aphid resistance and heat tolerance of MR1, MR2 and the BC1F1 hybrid were both significantly superior to that of C.×grandiflorum ‘rm20-12'. Interspecific hybridization followed by backcrossing shows clear potential for cultivar improvement in chrysanthemum. Springer Science+Business Media B.V., 2010 Chrysanthemum nationallicence Interspecific hybridization nationallicence Backcross nationallicence Aphid resistance nationallicence Heat tolerance nationallicence Cheng Xi College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut Chen Sumei College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut Chen Fadi College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut Deng Yanming College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut Fang Weimin College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut Tang Fangping College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut Liu Zhaolei College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut Shao Wei College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut Euphytica Springer Netherlands 177/1(2011-01-01), 45-53 0014-2336 177:1<45 2011 177 10681 https://doi.org/10.1007/s10681-010-0248-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-010-0248-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cheng Xi College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut NATIONALLICENCE 700 1- Chen Sumei College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut NATIONALLICENCE 700 1- Chen Fadi College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut NATIONALLICENCE 700 1- Deng Yanming College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut NATIONALLICENCE 700 1- Fang Weimin College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut NATIONALLICENCE 700 1- Tang Fangping College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut NATIONALLICENCE 700 1- Liu Zhaolei College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut NATIONALLICENCE 700 1- Shao Wei College of Horticulture, Nanjing Agricultural University, 210095, Nanjing, China aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 177/1(2011-01-01), 45-53 0014-2336 177:1<45 2011 177 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer