NDLI: Genetic analysis on oil content in rapeseed (Brassica napus L.)

Content Provider	Springer Nature Link
Author	Wang, Xinfa Liu, Guihua Yang, Qing Hua, Wei Liu, Jing Wang, Hanzhong
Copyright Year	2009
Abstract	High oil content is one of the most important characteristics of rapeseed (Brassica napus L.) breeding. In order to understand the genetic basis of seed oil content, a series of reciprocal crosses between rapeseed parents with high oil content (53110, 61616 and 6F313), medium-oil content (Zhongshuang 9) and low oil content (51070 and 93275) were conducted. It was found that the oil content of F1 hybrid seeds in rapeseed was mainly controlled by the maternal genotype. The maternal effect value of oil content was estimated to be 0.86. The pollen parent had a xenia effect on oil content, estimated to be 0.14 which changed the mean value by 1.86 percent. The inheritance of oil content was studied in a set of 8 × 8 diallel crosses of different varieties. The results indicated that the inheritance of oil content could be explained by an additive-dominant-epistasis model. Although the dominant and additive effects played major roles and accounted for more than 70% of the total variance, there was also a small epistatic effect. The broad and narrow sense heritability of oil content was 83.88 and 36.94%, respectively. Based on the oil content differences between the reciprocal crosses in the same offspring generation (F1 and F2) in rapeseed, it could be concluded that there were significant cytoplasmic effects on oil content. In this study, two lines with significantly cytoplasmic effects, either positive or negative, were selected.
Starting Page	17
Ending Page	24
Page Count	8
File Format	PDF
ISSN	00142336
Journal	Euphytica
Volume Number	173
Issue Number	1
e-ISSN	15735060
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-10-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Brassica napus L. Oil content Maternal effects Xenia effects Inheritance Biotechnology Plant Physiology Plant Pathology Plant Genetics & Genomics Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Horticulture Agronomy and Crop Science

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