caa a22 4500 606193502 CHVBK 20210128100910.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s10682-015-9771-x doi (NATIONALLICENCE)springer-10.1007/s10682-015-9771-x The temperature-size rule in a rotifer is determined by the mother and at the egg stage [Elektronische Daten] [Aleksandra Walczyńska, Mateusz Sobczyk, Marcin Czarnoleski, Jan Kozłowski] In most ectotherms, compared with development at low temperatures, development at high temperatures results in the acceleration of maturation, which in turn results in a smaller size (temperature-size rule, TSR). It is not known at which developmental stages this thermal response is determined. We exposed different life stages of the rotifer Lecane inermis to 15, 20, or 25°C to determine whether the TSR in the F1 generation is governed by the thermal conditions experienced by the mothers (F0 generation) during their development, during egg production, or during the development of the eggs or hatchlings. We found that the adult size was affected by the thermal conditions experienced by the mothers and embryos, but not by the conditions during post-hatching growth. We suggest that the thermal plasticity producing the TSR in rotifers may reflect the joint impacts of a maternal effect and a direct effect of the environment during egg development. The two-point control of the TSR resembles the thermal determination of other biological phenomena, similar to the thermally determined sex determination in ectotherms. Our results contribute not only to better understanding the proximate mechanisms of TSR, but also to comprehending the general biological mechanisms of response to temperature, which is one of the most important ecological factors. Springer International Publishing Switzerland, 2015 Body size nationallicence Environmental cue nationallicence Growth nationallicence Lecane inermis nationallicence Maternal effect nationallicence Phenotypic plasticity nationallicence Walczyńska Aleksandra Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland aut Sobczyk Mateusz Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland aut Czarnoleski Marcin Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland aut Kozłowski Jan Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland aut Evolutionary Ecology Springer International Publishing 29/4(2015-07-01), 525-536 0269-7653 29:4<525 2015 29 10682 https://doi.org/10.1007/s10682-015-9771-x text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10682-015-9771-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Walczyńska Aleksandra Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland aut NATIONALLICENCE 700 1- Sobczyk Mateusz Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland aut NATIONALLICENCE 700 1- Czarnoleski Marcin Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland aut NATIONALLICENCE 700 1- Kozłowski Jan Institute of Environmental Sciences, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland aut NATIONALLICENCE 773 0- Evolutionary Ecology Springer International Publishing 29/4(2015-07-01), 525-536 0269-7653 29:4<525 2015 29 10682