Latitudinal variation in oviposition rhythm of Drosophila ananassae strains originating from the equator to subtropics |
| |
Authors: | Moses K Satralkar V L Keny P V Khare C Vanlalnghaka M S Kasture A J Shivagaje R J Barnabas S B Iyyer D S Joshi |
| |
Institution: |
a Zoology Department, Ahmednagar, M.S., India |
| |
Abstract: | Parameters of oviposition rhythm of Drosophila ananassae strains originating from the equator, 0°N to 22.29°N were variable and latitude dependent. Phase angle difference (Ψ), amplitude of rhythm (R) and the percent oviposition in photophase (POP) were determined in LD 12:12 cycles. Although the R did not vary, the Ψ and POP varied by ~5 h and 60, respectively. Ψ was positively correlated while the POP was negatively correlated with latitude. Transfers from LD 12:12 cycles to constant darkness initiated free-running rhythms in all strains. Although the R did not vary, the τ varied by ~3.5 h which was positively correlated with latitude. |
| |
Keywords: | Circadian Drosophila entrainment latitude oviposition |
本文献已被 InformaWorld 等数据库收录! |