On 2015 May 12, University of Lausanne Genomics, Ecology and Evolution Journal Club commented:

This paper presents very interesting example of adaptive radiation analysis. This is a summary of the discussion at our journal club. Authors aimed to understand the molecular mechanisms and genetic changes underlying phenotypic diversity in African cichlid fish. For this purpose, they sequenced the genomes of five lineages of African cichlids, including an ancestral lineage with low diversity, and analyzed six closely related species underwent recent radiation from Lake Victoria. According observed results, authors postulate that multiple evolutionary mechanisms, such as increased gene duplication, accelerated evolution of coding and regulatory elements, regulation of gene expression by novel microRNAs and transposons insertion, retention of ancient polymorphism, together with relaxed purifying selection can trigger rapid diversification in African cichlids. However, Figure 2 and some figures presented in supplementary information are unclear. It is not clear that application of three different analyses for investigation of gene duplicates was necessary due to evident constraints of methods and expected low level of overlap between results. In any case, this paper provides a great resource to extend our understanding of adaptive radiation.

On 2015 May 12, University of Lausanne Genomics, Ecology and Evolution Journal Club commented:

This paper presents very interesting example of adaptive radiation analysis. This is a summary of the discussion at our journal club. Authors aimed to understand the molecular mechanisms and genetic changes underlying phenotypic diversity in African cichlid fish. For this purpose, they sequenced the genomes of five lineages of African cichlids, including an ancestral lineage with low diversity, and analyzed six closely related species underwent recent radiation from Lake Victoria. According observed results, authors postulate that multiple evolutionary mechanisms, such as increased gene duplication, accelerated evolution of coding and regulatory elements, regulation of gene expression by novel microRNAs and transposons insertion, retention of ancient polymorphism, together with relaxed purifying selection can trigger rapid diversification in African cichlids. However, Figure 2 and some figures presented in supplementary information are unclear. It is not clear that application of three different analyses for investigation of gene duplicates was necessary due to evident constraints of methods and expected low level of overlap between results. In any case, this paper provides a great resource to extend our understanding of adaptive radiation.