Asian Journal of Plant Sciences1682-39741812-5697Asian Network for Scientific Information10.3923/ajps.2009.417.424SimlaS. LertratK. SuriharnB. 6200986To supplement the selection for qualitative traits,
the quantitative study by generation means analysis was carried out. The
aim of this study was to determine gene effects for sugar contents (sucrose,
glucose, fructose and total sugar) in two waxy corns crosses (101sux101bt
and 101sux216sh2-crosses). Three inbred lines
(101su, 101bt and 216sh2) homozygous in
waxy gene were used as parents to generate six basic populations (P1,
P2, F1, F2, BC11 and BC12).
Eleven entries were planted in a randomized complete block design with
three replications. The sugar contents were evaluated en masse from immature
kernels at 21 days after pollination. The data were used in generation
means analysis to understand gene effects. Dominance and epistatic gene
effects explained most of genetic variation for sucrose and total sugar
in both crosses. Negative dominance gene effect indicated that sugar content
in the F1 hybrids were not as high as that of their parents.
Significant additive gene effect also indicated the synergistic effect
of the sweet gene combinations. Based on the results, backcross or three-way
cross is the best choice to increase sweetness in waxy corn and the use
of gene combinations is better than single gene. This information is useful
for planning breeding strategies for improving sweetness in waxy corn.]]>Boyer, C.D. and J.C. Shannon,19841139161Boyer, C.D. and L.C. Hannah,20002000Pages: 496Pages: 496Cameron, J.W. and D.A. Cole, Jr.,1959su1, su2 and du on carbohydrates in developing maize kernels.]]>51424427Campbell, D.K. and D.J. Hume,197010625626Cavalli, L.L.,19521952pp: 135-144pp: 135-144Creech, R.G. and F.J. McArdle,19666192194Creech, R.G.,19655211751186Ferguson, J.E., A.M. Rhodes and D.B. Dickinson,1978se), an independent modifier of sweet corn (su).]]>69377380Gomez, K.A. and A.A. Gomez,19842nd Edn.,Pages: 704Pages: 704Hayman, B.I.,195812371390Headrick, J.M., J.K. Pataky and J.A. Juvik,1990Fusarium moniliforme.]]>80487494Holder, D.G., D.V. Glover and J.C. Shannon,1974shrunken-2 with five other carbohydrate genes in corn endosperm.]]>14643646Holder, D.G., D.V. Glover and J.C. Shannon,1974shrunken-2 and sugary-1 in dosage series in corn endosperm.]]>14647648James, M.G., D.S. Robertson and A.M. Myers,19957417429Laughnan, J.R.,195338485499Lertrat, K. and T. Plulum,200712730Lertrat, K. and N. Thongnarin,2008769145150Nigam, S.N., H.D. Upadhyaya, S. Chandra, R.C. Nageswara Rao, G.C. Wright and A.G.S. Reddy,2001A. hypogaea).]]>139301306Rowe, K.E. and W.I. Alexander,198020109110Stoskopf, N.C., D.T. Tomes and B.R. Christie,1993Suriharn, B., A. Patanothai and S. Jogloy,2005Arachis hypogaea L.).]]>4667672Thongnarin, N., K. Lertrat and S. Techawongstien,2008Zea mays var. ceritina) inbred lines.]]>769151156Thoungnarin, N., K. Lertrat and S. Buddsarakul,20053656Torres, A.M., M.T. Moreno and J.I. Gubero,1993Vicia faba.]]>110220228Tracy, W.F.,20012001pp: 155-197pp: 155-197