文献类型： 外文期刊

作者： Qin, J. ² ; Yang, R. Q. ¹ ; Jiang, C. X. ⁴ ; Li, W. B. ⁵ ; Li, Y. H. ² ; Guan, R. X. ² ; Chang, R. Z. ² ; Qiu, L. J. ² ;

作者机构： 1.Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China

2.Chinese Acad Agr Sci, Inst Crop Sci, Key Lab Crop Germplasm Utilizat, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China

3.Hebei Acad Agr & Forestry Sci, Cereal & Oil Crop Inst, Shijiazhuang 050031, Peoples R China

4.Heilongjiang Acad Agr Sci, Inst Suihua Agr Sci, Suihua 152052, Peoples R China

5.NE Agr

关键词： genotype;phenotype;agronomic trait;pleiotropic effect;intraclass correlation;exotic germplasm;ecologic environment

期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）

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收录情况： SCI

摘要： P>In this study, we extended in silico mapping for single trait to analyse data from multiple environments by calculating intraclass correlations and to mapping pleiotropic QTL for multiple traits by defining new statistic to measure the correlation between multiple traits and the marker. Data sets include phenotypes of eight agronomic traits obtained from six different ecologic environments and years, and genotypic information from 477 polymorphic markers on 14 ancestral lines in the pedigree of 'Suinong14'. With in silico mapping, a total of 39 markers distributed on 14 linkage groups are detected as QTL responsible for eight agronomic traits and 10 QTL are identified as having pleiotropic effects. Tracing transmission of functional QTL in the pedigree indicated that certain QTL, such as Sat_036 on linkage group D1a, Satt182 on linkage group L, and Satt726 on linkage group B2 may be responsible for the contribution of exotic germplasm to the improved cultivars.