A Burst of Segmental Duplications in the African Great Ape Ancestor
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ABSTRACT:
PROVIDER: PRJNA110267 | ENA |
REPOSITORIES: ENA
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Project description:This SuperSeries is composed of the following subset Series: GSE13884: INTER_specific hybs: A Burst of Segmental Duplications in the African Great Ape Ancestor GSE13885: INTRA_specific hybs: A Burst of Segmental Duplications in the African Great Ape Ancestor Refer to individual Series
2009-03-05 | E-GEOD-13934 | biostudies-arrayexpress
Project description:INTER_specific hybs: A Burst of Segmental Duplications in the African Great Ape Ancestor
| PRJNA114621 | ENA
Project description:INTRA_specific hybs: A Burst of Segmental Duplications in the African Great Ape Ancestor
| PRJNA114623 | ENA
Project description:Wilson and King were among the first to recognize that the extent of phenotypic change between humans and great apes was dissonant with the rate of molecular change. Proteins are virtually identical; cytogenetically there are few rearrangements that distinguish ape-human chromosomes; rates of single-basepair change and retroposon activity have slowed particularly within hominid lineages when compared to rodents or monkeys. Here, we perform a systematic analysis of duplication content of four primate genomes (macaque, orangutan, chimpanzee and human) in an effort to understand the pattern and rates of genomic duplication during hominid evolution. We find that the ancestral branch leading to human and African great apes shows the most significant increase in duplication activity both in terms of basepairs and in terms of events. This duplication acceleration within the ancestral species is significant when compared to lineage-specific rate estimates even after accounting for copy-number polymorphism and homoplasy. We discover striking examples of recurrent and independent gene-containing duplications within the gorilla and chimpanzee that are absent in the human lineage. Our results suggest that the evolutionary properties of copy-number mutation differ significantly from other forms of genetic mutation and, in contrast to the hominid slowdown of single basepair mutations, there has been a genomic burst of duplication activity at this period during human evolution.
2009-03-06 | GSE13885 | GEO
Project description:Wilson and King were among the first to recognize that the extent of phenotypic change between humans and great apes was dissonant with the rate of molecular change. Proteins are virtually identical; cytogenetically there are few rearrangements that distinguish ape-human chromosomes; rates of single-basepair change and retroposon activity have slowed particularly within hominid lineages when compared to rodents or monkeys. Here, we perform a systematic analysis of duplication content of four primate genomes (macaque, orangutan, chimpanzee and human) in an effort to understand the pattern and rates of genomic duplication during hominid evolution. We find that the ancestral branch leading to human and African great apes shows the most significant increase in duplication activity both in terms of basepairs and in terms of events. This duplication acceleration within the ancestral species is significant when compared to lineage-specific rate estimates even after accounting for copy-number polymorphism and homoplasy. We discover striking examples of recurrent and independent gene-containing duplications within the gorilla and chimpanzee that are absent in the human lineage. Our results suggest that the evolutionary properties of copy-number mutation differ significantly from other forms of genetic mutation and, in contrast to the hominid slowdown of single basepair mutations, there has been a genomic burst of duplication activity at this period during human evolution.
2009-03-06 | GSE13884 | GEO
Project description:Wilson and King were among the first to recognize that the extent of phenotypic change between humans and great apes was dissonant with the rate of molecular change. Proteins are virtually identical; cytogenetically there are few rearrangements that distinguish ape-human chromosomes; rates of single-basepair change and retroposon activity have slowed particularly within hominid lineages when compared to rodents or monkeys. Here, we perform a systematic analysis of duplication content of four primate genomes (macaque, orangutan, chimpanzee and human) in an effort to understand the pattern and rates of genomic duplication during hominid evolution. We find that the ancestral branch leading to human and African great apes shows the most significant increase in duplication activity both in terms of basepairs and in terms of events. This duplication acceleration within the ancestral species is significant when compared to lineage-specific rate estimates even after accounting for copy-number polymorphism and homoplasy. We discover striking examples of recurrent and independent gene-containing duplications within the gorilla and chimpanzee that are absent in the human lineage. Our results suggest that the evolutionary properties of copy-number mutation differ significantly from other forms of genetic mutation and, in contrast to the hominid slowdown of single basepair mutations, there has been a genomic burst of duplication activity at this period during human evolution. A total of 8 humans, 8 chimpanzees and 8 orangutans were hybridized against the reference (NA15510, Clint and Susie, respectively).
2010-05-22 | E-GEOD-13885 | biostudies-arrayexpress
Project description:Wilson and King were among the first to recognize that the extent of phenotypic change between humans and great apes was dissonant with the rate of molecular change. Proteins are virtually identical; cytogenetically there are few rearrangements that distinguish ape-human chromosomes; rates of single-basepair change and retroposon activity have slowed particularly within hominid lineages when compared to rodents or monkeys. Here, we perform a systematic analysis of duplication content of four primate genomes (macaque, orangutan, chimpanzee and human) in an effort to understand the pattern and rates of genomic duplication during hominid evolution. We find that the ancestral branch leading to human and African great apes shows the most significant increase in duplication activity both in terms of basepairs and in terms of events. This duplication acceleration within the ancestral species is significant when compared to lineage-specific rate estimates even after accounting for copy-number polymorphism and homoplasy. We discover striking examples of recurrent and independent gene-containing duplications within the gorilla and chimpanzee that are absent in the human lineage. Our results suggest that the evolutionary properties of copy-number mutation differ significantly from other forms of genetic mutation and, in contrast to the hominid slowdown of single basepair mutations, there has been a genomic burst of duplication activity at this period during human evolution. A total of 3 chimpanzees, 2 bonobos, 3 gorillas, 1 orangutan and 1 macaque were hybridized against human (NA15510). Other hybridizations (other humans, and non-humans) were also used as a replicate.
2010-05-22 | E-GEOD-13884 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the SubSeries listed below.
2009-03-06 | GSE13934 | GEO
Project description:It is generally accepted that the extent of phenotypic change between human and great apes is dissonant with the rate of molecular change. Between these two groups, proteins are virtually identical, cytogenetically there are few rearrangements that distinguish ape-human chromosomes, and rates of single-base-pair change and retrotransposon activity have slowed particularly within hominid lineages when compared to rodents or monkeys. Studies of gene family evolution indicate that gene loss and gain are enriched within the primate lineage. Here, we perform a systematic analysis of duplication content of four primate genomes (macaque, orang-utan, chimpanzee and human) in an effort to understand the pattern and rates of genomic duplication during hominid evolution. We find that the ancestral branch leading to human and African great apes shows the most significant increase in duplication activity both in terms of base pairs and in terms of events. This duplication acceleration within the ancestral species is significant when compared to lineage-specific rate estimates even after accounting for copy-number polymorphism and homoplasy. We discover striking examples of recurrent and independent gene-containing duplications within the gorilla and chimpanzee that are absent in the human lineage. Our results suggest that the evolutionary properties of copy-number mutation differ significantly from other forms of genetic mutation and, in contrast to the hominid slowdown of single-base-pair mutations, there has been a genomic burst of duplication activity at this period during human evolution.
| S-EPMC2751663 | biostudies-literature
Project description:This study centered on using a custom made Nimblegen aCGH chip that targeted all segmental duplications in the canine genome to identify associated CNVs. A total of 19 hybridizations were performed in a panel of diverse dogs and a single wolf. Using computational approaches all segmental duplications were identified in the canFam2 genome of the dog. A custom aCGH chip was then built that densely interrogated these segmental duplications for CNVs in a panel of diverse dog breeds and a single wolf.
2010-05-17 | E-GEOD-13266 | biostudies-arrayexpress