MHC-linked susceptibility to a bacterial infection, but no MHC-linked cryptic female choice in whitefish.

摘要: Non-random gamete fusion is one of several potential cryptic female choice mechanisms that have been postulated and may enhance the survival probability offspring. Previous studies found in mice influenced by genes major histocompatibility complex (MHC) region. Here we test (i) whether there MHC-dependent whitefish (Coregonus sp.) (ii) a link between MHC embryo susceptibility to an infection bacterium Pseudomonas fuorescens. We experimentally bred reared sibships batches either experienced or did not experience strong selection P. fluorescens. then determined class II B1 genotype 1016 surviving larvae full sibships. no evidence for MHC-linked fusion. However, seven connection This was still significant after correcting multiple testing. Hence, can considerably influence whitefish, but seems be random with respect MHC.