Multilevel selection leads to divergent coadaptation of care-giving 1 parents during pre-hatching parental care 2
Multilevel selection leads to divergent coadaptation of care-giving 1 parents during pre-hatching parental care 2
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多级选择导致孵化前父母照顾 2 期间照顾者 1 父母的不同的共同适应
DOI:
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发表时间:
2022
期刊:
影响因子:
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通讯作者:
R. Kilner
中科院分区:
文献类型:
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作者:
Benjamin J. M. Jarrett;R. Mashoodh;S. Issar;S. Pascoal;D. Rebar;Jyun Sun;Matthew Schrader;R. Kilner
15 Parental care often involves coordination between the mothers and fathers. Their coordination is 16 partly due to flexible ‘negotiation rules’ that allow mothers and fathers to respond adaptively to each 17 other in real time, but could also be due to divergent environmental conditions that cause different 18 negotiation rules to evolve in different populations through coadaptation. We evolved experimental 19 populations of burying beetles Nicrophorus vespilloides in different environments and tested for 20 evidence that the sexes had coadapted to these divergent environments. In two populations, parents 21 supplied pre- and post-hatching care (Full Care environment), while in two other populations, parents 22 supplied only pre-hatching care (No Care environment). We have previously shown that parents in the 23 No Care populations rapidly evolved superior pre-hatching care. Here we show that this is due to the 24 coadaptation of the traits expressed by males and females while they convert carrion into an edible 25 nest for larvae. After 15 generations of experimental evolution, we created heterotypic pairs (No Care 26 females with Full Care males, and No Care males with Full Care females) and found they were less 27 effective at making a carrion nest than homotypic No Care pairs—with negative consequences for 28 brood performance. We suggest that the coadaptation of the sexes is the result of selection acting on 29 pairs in different ways in the No Care versus Full Care environments. We discuss how social co- 30 adaptations within cooperating pairs or teams of individuals could act as post-mating barriers to gene 31 flow.