TY - JOUR
T1 - Effects of temperature during successive generations on life-history traits in a seed beetle Callosobruchus chinensis (Chrysomelidae
T2 - Coleoptera)
AU - Terada, Kenji
AU - Matsumura, Kentarou
AU - Miyatake, Takahisa
N1 - Funding Information:
We thank Dr. Shin-ichi Yanagi, Dr. Takuro Oikawa, and Mr. Kazuma Kuroda for helpful advices. This work was mainly supported by the Japan Society for the Promotion of Science Grant-in-Aid for Scientific Grants, KAKENHI 17H05976, and 18H02510 to T.M.
Publisher Copyright:
© 2019, The Japanese Society of Applied Entomology and Zoology.
PY - 2019/11/1
Y1 - 2019/11/1
N2 - Temperature is an important environmental factor for life-history traits in poikilothermic animals. Many of experiments on evolution have been conducted using Drosophila species, and effects on life-history traits vary depending on the study. On the other hand, few studies have been conducted on the effects of temperature on life-history traits in the other insect species. In the present study, we reared adzuki bean beetles under two different temperatures, high and low, for 2 years (20 generations), and compared life-history traits including body size of females, fecundity, egg size, rate of egg hatching, emergence rate, development time, and wing length. No differences in responses were found in these traits between selection strains, except the rate of egg hatching. That is, the rates of egg hatching in high-temperature (32 °C) selection strains were significantly higher than those in low-temperature (24 °C) selection strains. We discuss the cause of change in egg hatchability during successive generations under different temperature treatments from the following viewpoints including evolutionary adaptation to high temperature and the experimental protocol.
AB - Temperature is an important environmental factor for life-history traits in poikilothermic animals. Many of experiments on evolution have been conducted using Drosophila species, and effects on life-history traits vary depending on the study. On the other hand, few studies have been conducted on the effects of temperature on life-history traits in the other insect species. In the present study, we reared adzuki bean beetles under two different temperatures, high and low, for 2 years (20 generations), and compared life-history traits including body size of females, fecundity, egg size, rate of egg hatching, emergence rate, development time, and wing length. No differences in responses were found in these traits between selection strains, except the rate of egg hatching. That is, the rates of egg hatching in high-temperature (32 °C) selection strains were significantly higher than those in low-temperature (24 °C) selection strains. We discuss the cause of change in egg hatchability during successive generations under different temperature treatments from the following viewpoints including evolutionary adaptation to high temperature and the experimental protocol.
KW - Callosobruchus chinensis
KW - Experimental evolution
KW - Hatching rate
KW - Seed beetle
KW - Temperature
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U2 - 10.1007/s13355-019-00643-z
DO - 10.1007/s13355-019-00643-z
M3 - Article
AN - SCOPUS:85073946715
SN - 0003-6862
VL - 54
SP - 459
EP - 464
JO - Applied Entomology and Zoology
JF - Applied Entomology and Zoology
IS - 4
ER -