NDLI: Intraspecific variation in heat tolerance of Drosophila prolongata (Diptera: Drosophilidae)

Content Provider	Springer Nature Link
Author	Hitoshi, Yurika Ishikawa, Yukio Matsuo, Takashi
Copyright Year	2016
Abstract	Tolerance to extreme temperatures is one of the most important components of adaptation to environments in insects. However, the genetic mechanisms of tolerance to long-term heat stress are mostly unknown. In this study, we investigated the genetic variation of susceptibility to long-term heat stress among the isofemale strains of Drosophila prolongata Singh & Gupta. High rates of pupal lethality were observed at 25 °C, showing that D. prolongata is more susceptible to heat stress than other Drosophila species. Susceptibility to heat stress was significantly different among the isofemale strains, suggesting that intraspecific genetic variation is involved in the reduced heat tolerance of D. prolongata. Unexpectedly, the tertiary sex ratio was biased to females at temperatures higher than 20 °C, indicating that the males were more susceptible to heat stress. These results demonstrated that D. prolongata is useful for genetic analysis for elucidating the molecular mechanisms of heat tolerance in insects.
Starting Page	515
Ending Page	520
Page Count	6
File Format	PDF
ISSN	00036862
Journal	Applied Entomology and Zoology
Volume Number	51
Issue Number	4
e-ISSN	1347605X
Language	English
Publisher	Springer Japan
Publisher Date	2016-05-20
Publisher Place	Tokyo
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Long-term heat stress Heat-induced lethality Genetic variation Drosophila prolongata Sex ratio Entomology Agriculture Applied Ecology Plant Pathology Zoology Environmental Management
Content Type	Text
Resource Type	Article
Subject	Insect Science

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