Lepidopteranphylogenyandapplications总结.pptx

Lepidopteran phylogeny and applications parative studies of development Written by . Regier T. Friedlander . Leclerc C. Mitter . parative parative and experimental methodologies offer plementary approaches to deducing both ic and ic mechanisms Both kinds of studies analyze the effects of Perturbations in the generation of these parative studies Evolutionary process itself Methodological level Have quite separate tradition and tool Evolutional experimental long ago many modification subsequently occurred Unmodified anism missing Experiment compare a single ic mutant with its parental parative biologists frequently deal with multiple species indirect to an experimentalist,but no alternative No substitute paring homologous process in anisms and for placing those comparisons within a ic context Examples that illustrates the significance of applying Phylogeny to developmental studies ? neotenic specie ? insect embryogenesis evolution Drosophila is rather unusual relative to other arthropods 节肢动物 Short germ bands typically more primitive and develop slowly Short germ bands panoistic ovaries ( 无滋卵巢) Long germ bands panoistic ovaries ( 具滋卵巢) highly polyploid Lepidoptera advantage for the study of ic relationships Lepidoptera one of the four diverse insect orders about 150,000 named species As model system for major studies of plant-insect interactions, mimicry and other adaptations, hormone and pheromone action, cuticle and chorion structure, and classic and molecular ic Well characterized at family and below But relationships among families and superfamilies poorly undterstood Need to develop molecular systematics of Lepidoptera 类别名称中国种数世界种数百分比(%) 同翅目 Homoptera 4,947 32,800 半翅目 Hemiptera 3,003 30,000 缨翅目 Thysanoptera 291 6,000 捻翅目 Stresiptera 17300 长翅目 Mecoptera 130 1,000 毛翅目 Trichoptera 553 7,000 7.