User:AllGasNoBreaks/sandbox

Salmonoid major histocompatibility complex: Major histocompatibiltiy complex (MHC) genes exhibit extensive variation, generally attributed to the notion of heterozygous individuals identifying a wider range of peptides than homozygous individuals. In arctic charr population in Finland, fish heterozygous for MHC alleles had fewer cysts, grew larger, and had better survival (Kekäläinen et al. 2009), all indicating a higher fitness of the heterozygotes. Gymnadenia rhellicani color polymorphism: In Gymnadenia rhellicani, flower pigmentation is controlled by changes to amino acids 612 and 663 in GrMYB1, which plays a role in anthocyanin pigment production (Kellenberger et al. 2019). Red flowers, heterozygous with black and white alleles, maintain a reproductive fitness advantage over white and black varieties presumably because they attract both bee and fly pollinator populations. Since the emergence of the white allele, the frequency of the red phenotype has been increasing in wild populations in multiple regions of the alps (Kellenberger et al. 2019). Yeah