Adult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors.

The thorniest problem in comparative neurobiology is the identification of the particular brain region of birds and reptiles that corresponds to the mammalian neocortex [Butler AB, Reiner A, Karten HJ (2011) Ann N Y Acad Sci 1225:14-27; Wang Y, Brzozowska-Prechtl A, Karten HJ (2010) Proc Natl Acad S...

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Main Authors: Belgard, G, Montiel, J, Wang, W, García-Moreno, F, Margulies, E, Ponting, C, Molnár, Z
Format: Journal article
Language:English
Published: 2013
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author Belgard, G
Montiel, J
Wang, W
García-Moreno, F
Margulies, E
Ponting, C
Molnár, Z
author_facet Belgard, G
Montiel, J
Wang, W
García-Moreno, F
Margulies, E
Ponting, C
Molnár, Z
author_sort Belgard, G
collection OXFORD
description The thorniest problem in comparative neurobiology is the identification of the particular brain region of birds and reptiles that corresponds to the mammalian neocortex [Butler AB, Reiner A, Karten HJ (2011) Ann N Y Acad Sci 1225:14-27; Wang Y, Brzozowska-Prechtl A, Karten HJ (2010) Proc Natl Acad Sci USA 107(28):12676-12681]. We explored which genes are actively transcribed in the regions of controversial ancestry in a representative bird (chicken) and mammal (mouse) at adult stages. We conducted four analyses comparing the expression patterns of their 5,130 most highly expressed one-to-one orthologous genes that considered global patterns of expression specificity, strong gene markers, and coexpression networks. Our study demonstrates transcriptomic divergence, plausible convergence, and, in two exceptional cases, conservation between specialized avian and mammalian telencephalic regions. This large-scale study potentially resolves the complex relationship between developmental homology and functional characteristics on the molecular level and settles long-standing evolutionary debates.
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spelling oxford-uuid:bd522cd9-8c5c-492f-b6e7-14add00a061b2022-03-27T05:30:58ZAdult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:bd522cd9-8c5c-492f-b6e7-14add00a061bEnglishSymplectic Elements at Oxford2013Belgard, GMontiel, JWang, WGarcía-Moreno, FMargulies, EPonting, CMolnár, ZThe thorniest problem in comparative neurobiology is the identification of the particular brain region of birds and reptiles that corresponds to the mammalian neocortex [Butler AB, Reiner A, Karten HJ (2011) Ann N Y Acad Sci 1225:14-27; Wang Y, Brzozowska-Prechtl A, Karten HJ (2010) Proc Natl Acad Sci USA 107(28):12676-12681]. We explored which genes are actively transcribed in the regions of controversial ancestry in a representative bird (chicken) and mammal (mouse) at adult stages. We conducted four analyses comparing the expression patterns of their 5,130 most highly expressed one-to-one orthologous genes that considered global patterns of expression specificity, strong gene markers, and coexpression networks. Our study demonstrates transcriptomic divergence, plausible convergence, and, in two exceptional cases, conservation between specialized avian and mammalian telencephalic regions. This large-scale study potentially resolves the complex relationship between developmental homology and functional characteristics on the molecular level and settles long-standing evolutionary debates.
spellingShingle Belgard, G
Montiel, J
Wang, W
García-Moreno, F
Margulies, E
Ponting, C
Molnár, Z
Adult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors.
title Adult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors.
title_full Adult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors.
title_fullStr Adult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors.
title_full_unstemmed Adult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors.
title_short Adult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors.
title_sort adult pallium transcriptomes surprise in not reflecting predicted homologies across diverse chicken and mouse pallial sectors
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