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Journal of Zhejiang University SCIENCE B 2007 Vol.8 No.1 P.33~38

10.1631/jzus.2007.B0033


Oogenesis in summer females of the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in southern Zhejiang, China


Author(s):  SHI Sheng-wei, JIANG Ming-xing, SHANG Han-wu, LV Hui-ping, CHENG Jia-an

Affiliation(s):  Institute of Insect Sciences, Zhejiang University, Hangzhou 310029, China; more

Corresponding email(s):   mxjiang@zju.edu.cn

Key Words:  Lissorhoptrus oryzophilus, Oogenesis, Ovarian development, Reproduction


SHI Sheng-wei, JIANG Ming-xing, SHANG Han-wu, LV Hui-ping, CHENG Jia-an. Oogenesis in summer females of the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in southern Zhejiang, China[J]. Journal of Zhejiang University Science B, 2007, 8(1): 33~38.

@article{title="Oogenesis in summer females of the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in southern Zhejiang, China",
author="SHI Sheng-wei, JIANG Ming-xing, SHANG Han-wu, LV Hui-ping, CHENG Jia-an",
journal="Journal of Zhejiang University Science B",
volume="8",
number="1",
pages="33~38",
year="2007",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.B0033"
}

%0 Journal Article
%T Oogenesis in summer females of the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in southern Zhejiang, China
%A SHI Sheng-wei
%A JIANG Ming-xing
%A SHANG Han-wu
%A LV Hui-ping
%A CHENG Jia-an
%J Journal of Zhejiang University SCIENCE B
%V 8
%N 1
%P 33~38
%@ 1673-1581
%D 2007
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2007.B0033

TY - JOUR
T1 - Oogenesis in summer females of the rice water weevil, Lissorhoptrus oryzophilus Kuschel (Coleoptera: Curculionidae), in southern Zhejiang, China
A1 - SHI Sheng-wei
A1 - JIANG Ming-xing
A1 - SHANG Han-wu
A1 - LV Hui-ping
A1 - CHENG Jia-an
J0 - Journal of Zhejiang University Science B
VL - 8
IS - 1
SP - 33
EP - 38
%@ 1673-1581
Y1 - 2007
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2007.B0033


Abstract: 
The rice water weevil, Lissorhoptrus oryzophilus Kuschel, has two generations in southern Zhejiang, China. To determine oogenesis in first-generation females (summer females) and its relations to temperature, females were collected from a rice field in early and mid-July and reared on young rice plants at 28, 31 and 34 °C in the laboratory. Percentage of females having oocytes, number of oocytes of different stages (stage-I, from early previtellogenesis to middle vitellogenesis; stage-II, late vitellogenesis; and mature-oocyte stage), and length of ovarioles were determined every 10 d of feeding. At each temperature, oogenesis took place in over 40% of females after 20~40 d of feeding, but only 0.0~3.3 stage-I, 0.0~0.8 stage-II and 0.0~1.1 mature oocytes were observed at each observation date. Temperature had significant effect on number of stage-I oocytes but not on number of stage-II and mature oocytes in early July females; temperature had no significant effect on number of oocytes of either stage in mid-July females. Conclusively, in southern Zhejiang, summer L. oryzophilus females have great potential to become reproductive on rice, but their oogenesis activity is very low, with the overall procedures little affected by temperature.

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

Reference

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