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| QTL Analysis of 5 Important Traits in Brassica napus |
| LIU Lie-zhao;LIN Na;CHEN Li;TANG Zhang-lin;ZHANG Xue-kun;LI Jia-na |
| College of Agronomy and Life Sciences, Southwest University, Chongqing 400715, China |
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Abstract Protein content in meal, hull content, oil content in hull, 1000-seed weight and seed oil content were analyzed using 132 F2:3 families which derived from across between yellow-seeded parent GH06 and black-seeded parent P174 of Brassica napus. The results showed that these five traits were typical quantitative trait with the phenotype continual distribution. Using the method of composite interval mapping(CIM), a total of 13 QTL(quantitative trait locus) affecting these five traits were detected in linkage group 7, 8, 13, 14, 19, 20 and 21. As for seed oil content and 1000-seed weight, only one QTL was obtained with 14.1% and 18.7% contribution for the phenotype variation respectively. Five QTL, 3 QTL and 3 QTL were detected for the protein content in meal, hull rate and oil content in hull and the contribution for each trait ranged from 7.8%~14.4%, 26.5%~32.8% and 8.3%~12.1% respectively. Furthermore, overlapping region was observed in linkage 20 among the QTL of protein content in meal, oil content in hull and 1000-seed weight.
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Received: 01 December 2005
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Corresponding Authors:
LI Jia-na
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ZHAO Zhi-Dong, TIAN Hong-Shan, JIANG Yan-Yan, SHI Bin-Gang, LIU Xiu, LI Xu-Peng, WANG Deng-Zhe, CHEN Jin-Lin, HU Jiang. Polymorphisms of ACSL1 Gene Promoter and Their Association Analysis with Milk Quality Traits in Yak (Bos grunniens)[J]. 农业生物技术学报, 2019, 27(9): 1596-1603. |
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