title: Effects of barley chromosome addition to wheat on behavior and development of Locusta migratoria nymphs.
abstract: Locusta migratoria feeds on various Poaceae plants but barley. Barley genes related to feeding deterrence may be useful for developing novel resistant crops. We investigated the effects of barley cultivar Betzes, wheat cultivar Chinese Spring (CS), and six barley chromosome disomic addition lines of wheat (2H-7H) on locomotor activity, feeding behavior, survival and development of L. migratoria nymphs. Locomotor activity was similar in nymphs kept with wheat and 2H-7H in an actograph, whereas it was generally high in those kept with barely. No-choice and choice feeding tests suggested that barley genes related to inhibition of feeding by L. migratoria are located on barley chromosomes 5H and 6H and those related to the palatability of plants on chromosomes 2H, 5H and 6H. Rearing experiments suggested the presence of barley genes negatively affecting the survival and growth of locust nymphs on chromosomes 5H and 2H, respectively, and the effects are phase-dependent.
authors.affiliation: Laboratory of System Ecology, Faculty of Agriculture, Saga University, Saga 840-8502, Japan.
authors.forename: Shunji
authors.initials: S
authors.lastname: Suematsu
authors.forename: Ken-ichi
authors.initials: K
authors.lastname: Harano
authors.forename: Seiji
authors.initials: S
authors.lastname: Tanaka
authors.forename: Kanako
authors.initials: K
authors.lastname: Kawaura
authors.forename: Yasunari
authors.initials: Y
authors.lastname: Ogihara
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Watari
authors.forename: Osamu
authors.initials: O
authors.lastname: Saito
authors.forename: Makoto
authors.initials: M
authors.lastname: Tokuda
mesh_terms: D000818:Animals; D001522:Behavior, Animal; D032461:Chromosomes, Plant; D005260:Female; D060434:Herbivory; D001467:Hordeum / Q000235:genetics*; D048188:Locusta migratoria / Q000254:growth & development* / Q000502:physiology*; D008297:Male; D009043:Motor Activity; D009758:Nymph; D030821:Plants, Genetically Modified; D014908:Triticum / Q000235:genetics*