Host plant suitability and reproductive isolation of two Schizotetranychus bambusae populations from the bamboo species Phyllostachys pubescens and Neosinocalamus affini

Abstract

Abstract: Development, survivorship, reproduction and procreation isolation of Schizotetranychus bambusae from the bamboo species Phyllostachys pubescens and Neosinocalamus affinis reared on different host plants were evaluated in laboratory. The results showed that the population of S.bambusae from Phyllostachys pubescens (PhS) failed to complete its life cycle when reared on the leaf of N.affinis. When the population of S.bambusae from N.affinis (NeS) was reared on the leaf of P.pubescens, the survivorship and fecundity decreased. The r_m, λ and R_o were 0.0391, 1.0399 and 2.5542, respectively. At 27℃, when the PhS was reared on P.pubescens, r_m, λ and R_o were 0.1415, 1.1520, and 15.6298, respectively, whereas NeS was reared on N.affinis,r_m,λ, and R_o were 0.0993, 1.1044, and 10.0622, respectively. Reciprocal cross test between PhS and NeS showed that the two populations could mate, but laid unfertilized eggs that produced male only, indicating the existence of reproductive isolation.

CLC Number:

Q968.1
S181

LIU Huai, ZHAO Zhimo, DENG Yongxue, DENG Xinping, HE Lin, WU Shiyuan, SHUAI Xia. Host plant suitability and reproductive isolation of two Schizotetranychus bambusae populations from the bamboo species Phyllostachys pubescens and Neosinocalamus affini[J]. Chinese Journal of Applied Ecology, 2004, (2): 299-302.

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