The effects of sex pheromone on female attractiveness and its role in maintaining color polymorphism in Arctia plantaginis
Tekijät
Päivämäärä
2021Pääsyrajoitukset
Tekijä ei ole antanut lupaa avoimeen julkaisuun, joten aineisto on luettavissa vain Jyväskylän yliopiston kirjaston arkistotyösemalta. Ks. https://kirjasto.jyu.fi/kokoelmat/arkistotyoasema..
Tekijänoikeudet
Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.
Natural and sexual selection can cause opposing selection pressures, which might help explain the maintenance of color polymorphism. It is a particularly puzzling phenomenon in aposematic species, such as the wood tiger moth (Arctia plantaginis), who should face strong selection for monomorphism. Wood tiger moth males in Finnish populations maintain two color morphs: white and yellow. The coloration is determined by one locus two allele mode of inheritance with a dominant allele for white (W) and a recessive allele for yellow coloration (y). While females also carry this gene, they do not express it phenotypically. I examined the role of sexual selection in maintaining color polymorphism by studying female attractiveness and its correlation with the total amount and the amounts of the compounds of female sex pheromone used to attract potential mates. Homozygous yellow females and heterozygous females attracted significantly more males in total than homozygous white females. The absolute amount of sex pheromone did not affect female attractiveness, but the relative amount of a minor compound had a positive correlation with attractiveness. The results also suggest that this correlation differs between female genotypes, despite them having similar amounts of all pheromone compounds. These results suggest that sexual selection has a role in maintaining color polymorphism in the wood tiger moth. The advantage gained by females carrying one or two yellow alleles may be balanced by other selective forces.
...
Asiasanat
Metadata
Näytä kaikki kuvailutiedotKokoelmat
- Pro gradu -tutkielmat [28138]
Samankaltainen aineisto
Näytetään aineistoja, joilla on samankaltainen nimeke tai asiasanat.
-
Geographic mosaic of selection by avian predators on hindwing warning colour in a polymorphic aposematic moth
Rönkä, Katja; Valkonen, Janne K.; Nokelainen, Ossi; Rojas, Bibiana; Gordon, Swanne; Burdfield‐Steel, Emily; Mappes, Johanna (Wiley-Blackwell, 2020)Warning signals are predicted to develop signal monomorphism via positive frequency‐dependent selection (+FDS) albeit many aposematic systems exhibit signal polymorphism. To understand this mismatch, we conducted a large‐scale ... -
Density-dependent effects of sexual selection on sexual behaviour and female choice in two distinct wood tiger moth populations
Kartano, Liisa (2023)Seksuaalivalinta on lajin sisäisen lisääntymiskilpailun muoto. Sen kaksi ensisijaista ilmenemismuotoa ovat kilpailu parittelukumppaneista ja kumppaninvalinta. Vaihtelu populaatiotiheydessä voi vaikuttaa yksilöiden ... -
Host’s genetic background determines the outcome of reciprocal faecal transplantation on life-history traits and microbiome composition
Juottonen, Heli; Moghadam, Neda N.; Murphy, Liam; Mappes, Johanna; Galarza, Juan A. (Biomed Central, 2022)Background Microbes play a role in their host's fundamental ecological, chemical, and physiological processes. Host life-history traits from defence to growth are therefore determined not only by the abiotic environment ... -
Genetic colour variation visible for predators and conspecifics is concealed from humans in a polymorphic moth
Nokelainen, Ossi; Galarza, Juan A.; Kirvesoja, Jimi; Suisto, Kaisa; Mappes, Johanna (Wiley-Blackwell, 2022)The definition of colour polymorphism is intuitive: genetic variants express discretely coloured phenotypes. This classification is, however, elusive as humans form subjective categories or ignore differences that cannot ... -
Not just the sum of its parts : Geographic variation and nonadditive effects of pyrazines in the chemical defence of an aposematic moth
Ottocento, Cristina; Winters, Anne E.; Rojas, Bibiana; Mappes, Johanna; Burdfield‐Steel, Emily (Wiley, 2023)Chemical defences often vary within and between populations both in quantity and quality, which is puzzling if prey survival is dependent on the strength of the defence. We investigated the within- and between-population ...
Ellei toisin mainittu, julkisesti saatavilla olevia JYX-metatietoja (poislukien tiivistelmät) saa vapaasti uudelleenkäyttää CC0-lisenssillä.