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Received: 2006-11-28

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Journal of Zhejiang University SCIENCE B 2007 Vol.8 No.5 P.338-344


Genetic analysis of fruit shape traits at different maturation stages in sponge gourd

Author(s):  ZHANG Sheng, HU Jin, ZHANG Cai-fang, GUAN Ya-jing, ZHANG Ying

Affiliation(s):  Department of Agronomy, Zhejiang University, Hangzhou 310029, China

Corresponding email(s):   jhu@dial.zju.edu.cn

Key Words:  Fruit length, Fruit perimeter, Genetic effects, Genetic variance, Luffa cylindrical Roem

ZHANG Sheng, HU Jin, ZHANG Cai-fang, GUAN Ya-jing, ZHANG Ying. Genetic analysis of fruit shape traits at different maturation stages in sponge gourd[J]. Journal of Zhejiang University Science B, 2007, 8(5): 338-344.

@article{title="Genetic analysis of fruit shape traits at different maturation stages in sponge gourd",
author="ZHANG Sheng, HU Jin, ZHANG Cai-fang, GUAN Ya-jing, ZHANG Ying",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

%0 Journal Article
%T Genetic analysis of fruit shape traits at different maturation stages in sponge gourd
%A ZHANG Sheng
%A HU Jin
%A ZHANG Cai-fang
%A GUAN Ya-jing
%J Journal of Zhejiang University SCIENCE B
%V 8
%N 5
%P 338-344
%@ 1673-1581
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.B0338

T1 - Genetic analysis of fruit shape traits at different maturation stages in sponge gourd
A1 - ZHANG Sheng
A1 - HU Jin
A1 - ZHANG Cai-fang
A1 - GUAN Ya-jing
A1 - ZHANG Ying
J0 - Journal of Zhejiang University Science B
VL - 8
IS - 5
SP - 338
EP - 344
%@ 1673-1581
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.B0338

The fruit shape is important quantitative trait closely related to the fruit quality. However, the genetic model of fruit shapes has not been proposed. Therefore, in the present study, analysis of genetic effects for fruit shape traits (fruit length and fruit perimeter) in sponge gourd was conducted by employing a developmental genetic model including fruit direct effects and maternal effects. Analysis approaches of unconditional and conditional variances were applied to evaluate the genetic behavior of fruit shape traits at economical and physiological maturation times. The results of variance analysis indicated that fruit length and fruit perimeter were simultaneously affected by fruit direct genetic effects and maternal effects. Fruit direct genetic effects were relatively more important for fruit shape traits at whole developmental period. The gene expression was most active at the economical maturation stage (1~12 d after flowering) for two shape traits, and the activation of gene was mostly due to direct dominance effects at physiological maturation stage (13~60 d after flowering). The coefficients due to different genetic effects, as well as the phenotypic correlation coefficients, varied significantly between fruit shape traits themselves at various maturation stages. The results showed that it was relatively easy to improve fruit shape traits for industrial purpose by carefully selecting the parents at economical maturation stage instead of that at physiological maturation stage.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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