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Improved de novo Assembly of the Achlorophyllous Orchid Gastrodia elata

Achlorophyllous plants are full mycoheterotrophic plants with no chlorophyll and they obtain their nutrients from soil fungi. Gastrodia elata is a perennial, achlorophyllous orchid that displays distinctive evolutionary strategy of adaptation to the non-photosynthetic lifestyle. Here in this study,...

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Autores principales: Chen, Shanshan, Wang, Xiao, Wang, Yangzi, Zhang, Guanghui, Song, Wanling, Dong, Xiao, Arnold, Michael L., Wang, Wen, Miao, Jianhua, Chen, Wei, Dong, Yang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7711107/
https://www.ncbi.nlm.nih.gov/pubmed/33329718
http://dx.doi.org/10.3389/fgene.2020.580568
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author Chen, Shanshan
Wang, Xiao
Wang, Yangzi
Zhang, Guanghui
Song, Wanling
Dong, Xiao
Arnold, Michael L.
Wang, Wen
Miao, Jianhua
Chen, Wei
Dong, Yang
author_facet Chen, Shanshan
Wang, Xiao
Wang, Yangzi
Zhang, Guanghui
Song, Wanling
Dong, Xiao
Arnold, Michael L.
Wang, Wen
Miao, Jianhua
Chen, Wei
Dong, Yang
author_sort Chen, Shanshan
collection PubMed
description Achlorophyllous plants are full mycoheterotrophic plants with no chlorophyll and they obtain their nutrients from soil fungi. Gastrodia elata is a perennial, achlorophyllous orchid that displays distinctive evolutionary strategy of adaptation to the non-photosynthetic lifestyle. Here in this study, the genome of G. elata was assembled to 1.12 Gb with a contig N50 size of 110 kb and a scaffold N50 size of 1.64 Mb so that it helped unveil the genetic basics of those adaptive changes. Based on the genomic data, key genes related to photosynthesis, leaf development, and plastid division pathways were found to be lost or under relaxed selection during the course of evolution. Thus, the genome sequence of G. elata provides a good resource for future investigations of the evolution of orchids and other achlorophyllous plants.
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spelling pubmed-77111072020-12-15 Improved de novo Assembly of the Achlorophyllous Orchid Gastrodia elata Chen, Shanshan Wang, Xiao Wang, Yangzi Zhang, Guanghui Song, Wanling Dong, Xiao Arnold, Michael L. Wang, Wen Miao, Jianhua Chen, Wei Dong, Yang Front Genet Genetics Achlorophyllous plants are full mycoheterotrophic plants with no chlorophyll and they obtain their nutrients from soil fungi. Gastrodia elata is a perennial, achlorophyllous orchid that displays distinctive evolutionary strategy of adaptation to the non-photosynthetic lifestyle. Here in this study, the genome of G. elata was assembled to 1.12 Gb with a contig N50 size of 110 kb and a scaffold N50 size of 1.64 Mb so that it helped unveil the genetic basics of those adaptive changes. Based on the genomic data, key genes related to photosynthesis, leaf development, and plastid division pathways were found to be lost or under relaxed selection during the course of evolution. Thus, the genome sequence of G. elata provides a good resource for future investigations of the evolution of orchids and other achlorophyllous plants. Frontiers Media S.A. 2020-11-19 /pmc/articles/PMC7711107/ /pubmed/33329718 http://dx.doi.org/10.3389/fgene.2020.580568 Text en Copyright © 2020 Chen, Wang, Wang, Zhang, Song, Dong, Arnold, Wang, Miao, Chen and Dong. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Genetics
Chen, Shanshan
Wang, Xiao
Wang, Yangzi
Zhang, Guanghui
Song, Wanling
Dong, Xiao
Arnold, Michael L.
Wang, Wen
Miao, Jianhua
Chen, Wei
Dong, Yang
Improved de novo Assembly of the Achlorophyllous Orchid Gastrodia elata
title Improved de novo Assembly of the Achlorophyllous Orchid Gastrodia elata
title_full Improved de novo Assembly of the Achlorophyllous Orchid Gastrodia elata
title_fullStr Improved de novo Assembly of the Achlorophyllous Orchid Gastrodia elata
title_full_unstemmed Improved de novo Assembly of the Achlorophyllous Orchid Gastrodia elata
title_short Improved de novo Assembly of the Achlorophyllous Orchid Gastrodia elata
title_sort improved de novo assembly of the achlorophyllous orchid gastrodia elata
topic Genetics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7711107/
https://www.ncbi.nlm.nih.gov/pubmed/33329718
http://dx.doi.org/10.3389/fgene.2020.580568
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