ArticleGenome biology and evolution2014
Repeated evolution of chimeric fusion genes in the β-globin gene family of laurasiatherian mammals.
Article in Genome biology and evolution, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
19 citing papers in PubMed, 30 citations in OpenAlex.
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- Introgressive Hybridization and Hypoxia Adaptation in High-Altitude Vertebrates.Frontiers in genetics · 2021Review
- Biochemical pedomorphosis and genetic assimilation in the hypoxia adaptation of Tibetan antelope.Science advances · 2020Article
- Oxygenation properties of hemoglobin and the evolutionary origins of isoform multiplicity in an amphibious air-breathing fish, the blue-spotted mudskipper (The Journal of experimental biology · 2020Article
- Adaptive Changes in Hemoglobin Function in High-Altitude Tibetan Canids Were Derived via Gene Conversion and Introgression.Molecular biology and evolution · 2019Article
- Emergence of a Chimeric Globin Pseudogene and Increased Hemoglobin Oxygen Affinity Underlie the Evolution of Aquatic Specializations in Sirenia.Molecular biology and evolution · 2019Article
- Gene fusion of heterophyletic gamma-globin genes in platyrrhine primates.Journal of genetics · 2018Article
- The genetic basis and evolution of red blood cell sickling in deer.Nature ecology & evolution · 2018Article
- Gene Turnover and Diversification of the α- and β-Globin Gene Families in Sauropsid Vertebrates.Genome biology and evolution · 2018Article
- The Diversity of Mammalian Hemoproteins and Microbial Heme Scavengers Is Shaped by an Arms Race for Iron Piracy.Frontiers in immunology · 2018Article
- Comparative genomics of canine hemoglobin genes reveals primacy of beta subunit delta in adult carnivores.BMC genomics · 2017Article
- Hemoglobin-oxygen affinity in high-altitude vertebrates: is there evidence for an adaptive trend?The Journal of experimental biology · 2016Review
- Gene Duplication and Evolutionary Innovations in Hemoglobin-Oxygen Transport.Physiology (Bethesda, Md.) · 2016Review
- Recurrent chimeric fusion RNAs in non-cancer tissues and cells.Nucleic acids research · 2016Article
- Genetically based low oxygen affinities of felid hemoglobins: lack of biochemical adaptation to high-altitude hypoxia in the snow leopard.The Journal of experimental biology · 2015Article
- Gene turnover in the avian globin gene families and evolutionary changes in hemoglobin isoform expression.Molecular biology and evolution · 2015Article
- Intraspecific polymorphism, interspecific divergence, and the origins of function-altering mutations in deer mouse hemoglobin.Molecular biology and evolution · 2015Article
- Article
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
Abstract
The evolutionary fate of chimeric fusion genes may be strongly influenced by their recombinational mode of origin and the nature of functional divergence between the parental genes. In the β-globin gene family of placental mammals, the two postnatally expressed δ- and β-globin genes (HBD and HBB, respectively) have a propensity for recombinational exchange via gene conversion and unequal crossing-over. In the latter case, there are good reasons to expect differences in retention rates for the reciprocal HBB/HBD and HBD/HBB fusion genes due to thalassemia pathologies associated with the HBD/HBB "Lepore" deletion mutant in humans. Here, we report a comparative genomic analysis of the mammalian β-globin gene cluster, which revealed that chimeric HBB/HBD fusion genes originated independently in four separate lineages of laurasiatherian mammals: Eulipotyphlans (shrews, moles, and hedgehogs), carnivores, microchiropteran bats, and cetaceans. In cases where an independently derived "anti-Lepore" duplication mutant has become fixed, the parental HBD and/or HBB genes have typically been inactivated or deleted, so that the newly created HBB/HBD fusion gene is primarily responsible for synthesizing the β-type subunits of adult and fetal hemoglobin (Hb). Contrary to conventional wisdom that the HBD gene is a vestigial relict that is typically inactivated or expressed at negligible levels, we show that HBD-like genes often encode a substantial fraction (20-100%) of β-chain Hbs in laurasiatherian taxa. Our results indicate that the ascendancy or resuscitation of genes with HBD-like coding sequence requires the secondary acquisition of HBB-like promoter sequence via unequal crossing-over or interparalog gene conversion.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.