Genetic analysis of embryo, cytoplasmic, and maternal effects and their environment interactions for protein content in Brassica napus L.
J. G. Wu A B , C. H. Shi A and H. Z. Zhang AA Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310029, P. R. China.
B Corresponding author. Email: jgwu@zju.edu.cn
Australian Journal of Agricultural Research 56(1) 69-73 https://doi.org/10.1071/AR04089
Submitted: 20 April 2004 Accepted: 24 November 2004 Published: 31 January 2005
Abstract
A genetic model for quantitative traits of seeds in diploid plants was applied to estimate the genetic main effects and genotype × environment (GE) interaction effects for protein content (PC) of rapeseed (Brassica napus L.) by using 2 years of experimental data with a diallel mating design of 8 parents. Results showed that PC of rapeseed was simultaneously controlled by genetic effects of embryo, cytoplasm, and maternal plant, of which the maternal genetic effects were most important, followed by embryo and cytoplasmic genetic effects. Therefore, improvement of PC of rapeseed would be more efficient when selection is based on maternal plants than that on single seeds. Since the GE interaction effects accounted for about 60.10% of total genetic effect, they were more important than the genetic main effects, and selection for PC might be influenced by environmental conditions. The total narrow-sense heritability for PC was 64.17%, of which the interaction heritability was larger than the general heritability. Selection for improving PC can therefore be conducted in early generations. Maternal heritability (41.59%) was most important for PC, followed by cytoplasmic heritability (17.62%) and then by embryo heritability (5.25%). Based on prediction of genetic effects, parent Youcai 601 was better than others for increasing PC in rapeseed breeding.
Additional keywords: genetic effect, genetic variance, heritability, protein content, rapeseed (Brassica napus L.).
Acknowledgments
The project was financially supported from the Foundation for University Key Teacher by the Ministry of Education of China and by the 151 Program for the Talents of Zhejiang Province. The authors also thank Prof. Zhu for providing the analysis software, and Mr C. K. Pkania for kindly improving the English of the text.
Bouchereau A,
Clossais-Besnard N,
Bensaoud A,
Leport L, Renard M
(1996) Water stress effects on rapeseed quality. European Journal of Agronomy 51, 19–30.
| Crossref | GoogleScholarGoogle Scholar |
Brandle JE, McVetty PBE
(1988) Effects of inbreeding and estimates of additive genetic variance within seven summer oilseed rape cultivars. Genome 32, 115–119.
Grami B,
Baker RJ, Stefansson BR
(1977) Genetics of protein and oil content in summer rape: heritability, number of effective factors and correlations. Canadian Journal of Plant Science 57, 937–943.
Grami B, Stefansson BR
(1977) Paternal and maternal effects on protein and oil content in summer rape. Canadian Journal of Plant Science 57, 945–949.
Hu ZL
(1987) Genetic anlysis on several quality traits in rapeseed (Brassica napus L.). Oil Crops of China 1, 19–22.
Jensen CR,
Mogensen VO,
Mortensen G,
Fieldsend JK,
Milford GFJ,
Andersen MN, Thage JH
(1996) Seed glusosinolate, oil and protein contents of field-grown rape (Brassica napus L.) affected by soil drying and evaporative demand. Field Crops Research 47, 93–105.
| Crossref | GoogleScholarGoogle Scholar |
McVetty PBE, Pinnisch R
(1994) Comparison of the effect of nap and pol cytoplasms on the performance of three summer oilseed rape cultivar-derived isoline pairs. Canadian Journal of Plant Science 74, 729–731.
Miller RG
(1974) The Jackknife, a review. Biometrika 61, 1–15.
Shi CH,
Zhang HZ,
Wu JG,
Li CT, Ren YL
(2003) Genetic and genotype × environment interaction effects analysis for erucic acid content in rapeseed (Brassica napus L.). Euphytica 130, 249–254.
| Crossref | GoogleScholarGoogle Scholar |
Si P,
Mailer RG,
Galwe N, Turner DW
(2003) Influence of genotype and environment on oil and protein concentrations of canola (Brassica napus L.) grown across southern Australia. Australian Journal of Agricultural Research 54, 397–407.
| Crossref | GoogleScholarGoogle Scholar |
Wang F, Qiu J
(1990) Studies on the inheritance of seed protein content and its correlation with other characters in Brassica napus L. Scientia Agricultura Sinica 23, 42–47.
Zhang SF,
Song WG,
Ren LJ,
Tian BM,
Wen YC,
Liu JM, Wang JP
(1996) Studies on hereditary capacity of quantitative characters and gene effects of CMS double low Brassica napus. Oil Crops of China 3, 1–3.
Zhu J
(1993) Methods of predicting genotype value and heterosis for offspring of hybrids. Chinese Journal of Biomathematics 1, 32–44.
Zhu J
(1996) Analytic methods for seed models with genotype × environment interactions. Acta Genetica Sinca 23, 56–68.
Zhu J, Weir BW
(1994) Analysis of cytoplasmic and maternal effects. I. A genetic model for diploid plant seeds and animals. Theoretical and Applied Genetics 89, 153–159.
Zhu J, Weir BW
(1996) Diallel analysis for sex-linked and maternal effects. Theoretical and Applied Genetics 92, 1–9.
| Crossref | GoogleScholarGoogle Scholar |
