Host plant effects on the genetic variation and correlations in the individual performance of the gypsy moth
1998
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
,
© British Ecological Society
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
1. Quantitative genetic analysis of variation in host-use ability was performed in an
extremely polyphagous species – the Gypsy Moth. Various life-history traits were
investigated by applying a split-family two-environment experimental design, where
30 full-sibling families were reared on oak and Locust Tree leaves.
2. Feeding on Locust Tree leaves decreased preadult viability, prolonged development
time, decreased pupal mass both in males and females, and decreased reproductive
effort in females.
3. The majority of broad-sense heritabilities did not change across host plants.
4. Significant expression of genetic variation in diet breadth was observed for
development time and pupal mass both in males and females, but not for female reproductive
effort traits. The heritabilities of plasticities were, on average, lower than
heritabilities of the traits themselves.
5. The majority of genetic correlations between the host plants were significantly
positive. The only trade-off was found between reciprocal value of reproductive index
and the average mass of a fertilized egg within oak. This means that selection for the
decrease in relative reproductive investment (under starvation during gradation) will
be followed by laying larger eggs. Given that the Gypsy Moth has a cyclic population
dynamics, this negative genetic correlation could have a role in maintaining genetic
variability in this species.
Ključne reči:
Insect–host plant interaction; Lymantria dispar; phenotypic plasticity; trade-offIzvor:
Functional Ecology, 1998, 12, 1, 141-148Finansiranje / projekti:
- Ministry for Science and Technology of Serbia (Contract #03E13)
DOI: 10.1046/j.1365-2435.1998.00166.x
ISSN: 0269-8463
WoS: 000072631600017
Scopus: 2-s2.0-0031910956
URI
https://besjournals.onlinelibrary.wiley.com/doi/abs/10.1046/j.1365-2435.1998.00166.xhttps://radar.ibiss.bg.ac.rs/handle/123456789/3973