title: Heritability and evolutionary potential in thermal tolerance traits in the invasive Mediterranean cryptic species of Bemisia tabaci (Hemiptera: Aleyrodidae).
abstract: With advancing global climate change, the analysis of thermal tolerance and evolutionary potential is important in explaining the ecological adaptation and changes in the distribution of invasive species. To reveal the variation of heat resistance and evolutionary potential in the invasive Mediterranean cryptic species of Bemisia tabaci, we selected two Chinese populations-one from Harbin, N China, and one from Turpan, S China-that experience substantial heat and cold stress and conducted knockdown tests under static high- and low-temperature conditions. ANOVAs indicated significant effects of populations and sex on heat knockdown time and chill coma recovery time. The narrow-sense heritability (h2) estimates of heat tolerance based on a parental half-sibling breeding design ranged from 0.47 ± 0.03 to 0.51 ± 0.06, and the estimates of cold tolerance varied from 0.33 ± 0.07 to 0.36 ± 0.06. Additive genetic variances were significantly different from zero for both heat and cold tolerance. These results suggest that invasive B. tabaci Mediterranean cryptic species possesses a strong ability to respond to thermal selection and develops rapid resistance to climate change.
authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P. R. China.
authors: Fang-Zhou
authors: FZ
authors: Ma
authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P. R. China.
authors: Zhi-Chuang
authors: ZC
authors: Lü
authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P. R. China.
authors: Ren
authors: R
authors: Wang
authors: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, P. R. China; Center for Management of Invasive Alien Species, Ministry of Agriculture, Beijing, P. R. China.
authors: Fang-Hao
authors: FH
authors: Wan
mesh_terms: D000064:Acclimatization; D000818:Animals; D005075:Biological Evolution; D002681:China; D057231:Climate Change; D005260:Female; D014644:Genetic Variation; D006430:Hemiptera / Q000235:genetics / Q000502:physiology*; D058865:Introduced Species; D008297:Male; D013696:Temperature