caa a22 4500 47579978X CHVBK 20180406123734.0 cr unu---uuuuu 170329e20000701xx s 000 0 eng 10.1023/A:1026541215546 doi (NATIONALLICENCE)springer-10.1023/A:1026541215546 A Newly Uncovered Phenotype Associated with the fruitless Gene of Drosophila melanogaster: Aggression-like Head Interactions Between Mutant Males [Elektronische Daten] [Gyunghee Lee, Jeffrey Hall] Male sexual behavior is regulated by the sex-determination hierarchy (SDH) in Drosophila melanogaster. The fruitless (fru) gene, one of the regulatory factors functioning downstream of other SDH factors, plays a prominent role in male sexual behavior. Here we demonstrate that fru mutations cause a previously unappreciated behavioral anomaly: high levels of head-to-head interactions between mutant males. These apparent confrontations between males are exhibited by all of the homozygous-viable fru mutants (expressing the effects of a given allele, among the four tested). Mutant dissatisfaction (dsf) males also exhibit this behavior at higher-than-normal levels, but it was barely displayed by doublesex or intersex mutants. For fru, a social component is involved in the head-interaction phenotype, while increasing age is a modifying factor for the behavior of dsf males. We suggest that head-to-head interactions, especially those performed by fru males, are instances of putative aggression analogous to those exhibited by wild-type males and that head interactions are, to an extent, operationally separable from courtship behavior. Plenum Publishing Corporation, 2000 Intermale interactions nationallicence aggression nationallicence sexual behavior nationallicence fruitless, dissatisfaction, doublesex, and intersex mutants nationallicence Lee Gyunghee Department of Biology, Brandeis University, 02454-9110, Waltham, Massachusetts aut Hall Jeffrey Department of Biology, Brandeis University, 02454-9110, Waltham, Massachusetts aut Behavior Genetics Kluwer Academic Publishers-Plenum Publishers 30/4(2000-07-01), 263-275 0001-8244 30:4<263 2000 30 10519 https://doi.org/10.1023/A:1026541215546 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1026541215546 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lee Gyunghee Department of Biology, Brandeis University, 02454-9110, Waltham, Massachusetts aut NATIONALLICENCE 700 1- Hall Jeffrey Department of Biology, Brandeis University, 02454-9110, Waltham, Massachusetts aut NATIONALLICENCE 773 0- Behavior Genetics Kluwer Academic Publishers-Plenum Publishers 30/4(2000-07-01), 263-275 0001-8244 30:4<263 2000 30 10519 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer