Isofemale line method (Drosophilidae)

Knowledge graph centered on Isofemale line method (Drosophilidae) with 24 nodes and 61 connections. Top connected: frequency-dependent selection, The extent of variation in male song, wing and gen, Drosophila melanogaster, Poecilia reticulata, ecological speciation.

Method synopsis

Wild-caught flies are used to establish laboratory breeding lines maintained under standardized conditions. Lines are kept in multiple vials with controlled temperature, lighting, and nutrition to preserve genetic diversity for behavioral experiments.

Synthesized from method descriptions across 2 papers using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Male courtship song and female preference variation between phylogeographically distinct populations of <i>Drosophila montana</i> (2007), Evolution. Implementations in other papers (listed below) may differ.

1. Establish isofemale lines
   Isofemale lines were established from collections made in 2003 in Oulanka, Finland (66°25'N, 29°0'E), and from flies collected and surroundings in British Columbia in Canada (49°16'N, 122°55'W), and in Crested Butte, Colorado (38°52'N, 106°59'W). Some lines perished during the first few generations in the lab, thus a different number of lines were available for the different experiments.
   Quantities: 23 lines from Canada, seven from Colorado, and 17 from OulankaDuration: Lines maintained through multiple generationsConditions: Laboratory conditions at constant ambient temperature of 19°C with an average variation ±0.5°C and a 12h light fluctuation of 0.1°C and a 24h light regime, simulating natural conditions during the mating season
   Equipment: malt medium, live yeast, multiple vials
2. Prepare flies for experiments
   Emerging flies were sexed under light CO2 anesthesia and separated into single-sex vials within three days after emergence to ensure virginity. After becoming sexually mature at the age of three weeks, males and females were isolated individually in vials shortly before being used for playback experiments or song recording.
   Quantities: 50 flies per vialDuration: Flies held individually for short period before experimentsConditions: Light CO2 anesthesia used for sexing
   Equipment: CO2 anesthesia equipment, individual vials

Typical Equipment

• malt medium
• live yeast
• multiple vials
• CO2 anesthesia equipment

Output Measurements

• breeding populations
• virgin flies for experiments

Papers Using This Protocol (2)

Species Studied With This Protocol