Mining Applicable Elite Alleles of Growth Duration, Plant Height and Panicle Number per Plant by Conditional QTL Mapping in Japonica Rice
| Autor: | De-lin Hong, Bao-jian Qiao, Qiang-ming Liu, Jian-hua Jiang, Qi-bing Zhao, Lan Chen, Fu-long Chen |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Population
Plant Science Biology Quantitative trait locus lcsh:Plant culture growth duration plant height Gene interaction Inbred strain unconditional QTL mapping lcsh:SB1-1110 Plant breeding Allele education japonica rice Panicle education.field_of_study food and beverages Horticulture Agronomy recombinant inbred line Epistasis conditional QTL mapping effective panicle number per plant Agronomy and Crop Science Biotechnology |
| Zdroj: | Rice Science, Vol 18, Iss 3, Pp 196-203 (2011) |
| ISSN: | 1672-6308 |
| Popis: | Unconditional and conditional QTL mapping were conducted for growth duration (GD), plant height (PH) and effective panicle number per plant (PN) using a recombinant inbred line (RIL) population derived from a cross between two japonica rice varieties Xiushui 79 and C Bao. The RIL population consisted of 254 lines was planted in two environments, Nanjing and Sihong, Jiangsu Province, China. Results showed that additive effects were major in all of QTLs for GD, PH and PN detected by the two methods, and the epistatic effects explained a small proportion of phenotypic variation. No interactions were detected between additive QTL and environment, and between epistatic QTL pairs and environment. After growth duration was adjusted to an identical level, RM80-160bp was detected as an applicable elite allele for PN, with an additive effect of 0.71. When effective panicle number per plant was adjusted to an identical level, RM448-240bp was detected as an applicable elite allele for GD, with an additive effect of 4.64. After plant height was adjusted to an identical level, RM80-160bp was detected as an applicable elite allele for PN, with an additive effect of 0.62, and RM448-240bp was detected as an applicable elite allele for GD, with an additive effect of 3.89. These applicable elite alleles could be used to improve target traits without influencing the other two traits. |
| Databáze: | OpenAIRE |
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