Is assortative fertilisation after sperm competition driven by
male environment or male genetics in common bedbugs (Cimex
lectularius)?

a 2019

Is assortative fertilisation after sperm competition driven by male environment or male genetics in common bedbugs (Cimex lectularius)?

KŘEMENOVÁ, Jana; Ondřej BALVÍN; Klaus REINHARDT; Markéta SASÍNKOVÁ; Alfons WEIG et al.

Základní údaje

Originální název

Is assortative fertilisation after sperm competition driven by male environment or male genetics in common bedbugs (Cimex lectularius)?

Autoři

KŘEMENOVÁ, Jana; Ondřej BALVÍN; Klaus REINHARDT; Markéta SASÍNKOVÁ; Alfons WEIG; Tomáš BARTONIČKA a Oliver OTTI

Vydání

ESEB Turku, 2019

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10613 Zoology

Stát vydavatele

Finsko

Utajení

není předmětem státního či obchodního tajemství

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/19:00107602

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

assortative mating; sperm competition; insect

Příznaky

Mezinárodní význam

Změněno: 12. 9. 2019 13:36, Mgr. Jana Vandrovcová, Ph.D.

Anotace

V originále

Even though assortative mating has large implication for mate choice and speciation, it has mainly been examined prior to mating but less so after mating (assortative fertilisation). Moreover, research on assortative mating has not always separated whether the assortment was based on environmental or genetic effects. Here we used common bedbugs (Cimex lectularius) from five populations that naturally either feed on human blood or bat blood. Females and 1st used males (P1) came from one population which was different from populations of 2nd used males (P2). P2 were fed on either their original diet or that of the other populations (i.e. eight combinations) and thereby were able to quantify the relative influence of male genetics and environment on the outcome of assortative fertilisation. Assortment by genetic characters, i.e. local adaptation of ejaculates, predicts an effect of male genetics but not of male diet. Focussing on sperm offence, we genotyped 10 offspring/week/female over at least 6 weeks. The results of this work in progress show that paternity of P2 increases with time since mating, from 20% in week 1 to 70% on average in week 5. Pending the final outcomes of the genotyping, our current data suggest that P2 are higher on the original than the foreign diet in week 1 (assortative fertilization), then remain similar and become lower in weeks 4 and 5 (disassortative fertilisation). Our study reveals the significance of separating environmental and genetic effects on assortative mating and show that it is not necessarily constant over time.

Návaznosti

GC18-08468J, projekt VaV

Název: Role adaptace a fenotypové plasticity spermií v ekologické speciaci

Investor: Grantová agentura ČR, Role adaptace a fenotypové plasticity spermií v ekologické speciaci

Citovat

KŘEMENOVÁ, Jana; Ondřej BALVÍN; Klaus REINHARDT; Markéta SASÍNKOVÁ; Alfons WEIG; Tomáš BARTONIČKA a Oliver OTTI. Is assortative fertilisation after sperm competition driven by male environment or male genetics in common bedbugs (Cimex lectularius)? In ESEB Turku. 2019.

@proceedings{1550841,
   author = {Křemenová, Jana and Balvín, Ondřej and Reinhardt, Klaus and Sasínková, Markéta and Weig, Alfons and Bartonička, Tomáš and Otti, Oliver},
   booktitle = {ESEB Turku},
   keywords = {assortative mating; sperm competition; insect},
   language = {eng},
   title = {Is assortative fertilisation after sperm competition driven by male environment or male genetics in common bedbugs (Cimex lectularius)?},
   year = {2019}
}

TY  - CONF
ID  - 1550841
AU  - Křemenová, Jana - Balvín, Ondřej - Reinhardt, Klaus - Sasínková, Markéta - Weig, Alfons - Bartonička, Tomáš - Otti, Oliver
PY  - 2019
TI  - Is assortative fertilisation after sperm competition driven by male environment or male genetics in common bedbugs (Cimex lectularius)?
KW  - assortative mating
KW  - sperm competition
KW  - insect
N2  - Even though assortative mating has large implication for mate choice and speciation, it has mainly been examined prior to mating but less so after mating (assortative fertilisation). Moreover, research on assortative mating has not always separated whether the assortment was based on environmental or genetic effects. Here we used common bedbugs (Cimex lectularius) from five populations that naturally either feed on human blood or bat blood. Females and 1st used males (P1) came from one population which was different from populations of 2nd used males (P2). P2 were fed on either their original diet or that of the other populations (i.e. eight combinations) and thereby were able to quantify the relative influence of male genetics and environment on the outcome of assortative fertilisation. Assortment by genetic characters, i.e. local adaptation of ejaculates, predicts an effect of male genetics but not of male diet. Focussing on sperm offence, we genotyped 10 offspring/week/female over at least 6 weeks. The results of this work in progress show that paternity of P2 increases with time since mating, from 20% in week 1 to 70% on average in week 5. Pending the final outcomes of the genotyping, our current data suggest that P2 are higher on the original than the foreign diet in week 1 (assortative fertilization), then remain similar and become lower in weeks 4 and 5 (disassortative fertilisation). Our study reveals the significance of separating environmental and genetic effects on assortative mating and show that it is not necessarily constant over time.
ER  -

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