Genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands

Abstract Japanese chestnut (Castanea crenata Sieb. et Zucc.), the only fruit tree species domesticated in Japan, has been cultivated alongside natural stands since prehistorical times. Understanding the genetic diversity of this species and the relationships between cultivated and wild chestnut is i...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sogo Nishio, Norio Takada, Shingo Terakami, Yukie Takeuchi, Megumi K. Kimura, Keiya Isoda, Toshihiro Saito, Hiroyuki Iketani
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d310340f41c949d18704ffcaa9d3f615
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d310340f41c949d18704ffcaa9d3f615
record_format	dspace
spelling	oai:doaj.org-article:d310340f41c949d18704ffcaa9d3f6152021-12-02T11:46:06ZGenetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands10.1038/s41598-020-80696-12045-2322https://doaj.org/article/d310340f41c949d18704ffcaa9d3f6152021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-80696-1https://doaj.org/toc/2045-2322Abstract Japanese chestnut (Castanea crenata Sieb. et Zucc.), the only fruit tree species domesticated in Japan, has been cultivated alongside natural stands since prehistorical times. Understanding the genetic diversity of this species and the relationships between cultivated and wild chestnut is important for clarifying its breeding history and determining conservation strategies. We assessed 3 chestnut cultivar populations and 29 wild chestnut populations (618 accessions). Genetic distance analysis revealed that wild populations in the Kyushu region are genetically distant from other populations, whereas other wild and cultivar populations are comparatively similar. Assignment tests suggested that cultivars were relatively similar to populations from central to western Honshu. Bayesian structure analyses showed that wild individuals were roughly classified according to geographical distribution along the Japanese archipelago, except that some wild individuals carried the genetic cluster prevalent in cultivars. Parentage analyses between cultivars and wild individuals identified 26 wild individuals presumed to have a parent–offspring relationship with a cultivar. These results suggested that the genetic structure of some wild individuals in natural stands was influenced by gene flow from cultivars. To conserve wild individuals carrying true “wild” genetic clusters, these individuals should be collected and preserved by ex situ conservation programs.Sogo NishioNorio TakadaShingo TerakamiYukie TakeuchiMegumi K. KimuraKeiya IsodaToshihiro SaitoHiroyuki IketaniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sogo Nishio Norio Takada Shingo Terakami Yukie Takeuchi Megumi K. Kimura Keiya Isoda Toshihiro Saito Hiroyuki Iketani Genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands
description	Abstract Japanese chestnut (Castanea crenata Sieb. et Zucc.), the only fruit tree species domesticated in Japan, has been cultivated alongside natural stands since prehistorical times. Understanding the genetic diversity of this species and the relationships between cultivated and wild chestnut is important for clarifying its breeding history and determining conservation strategies. We assessed 3 chestnut cultivar populations and 29 wild chestnut populations (618 accessions). Genetic distance analysis revealed that wild populations in the Kyushu region are genetically distant from other populations, whereas other wild and cultivar populations are comparatively similar. Assignment tests suggested that cultivars were relatively similar to populations from central to western Honshu. Bayesian structure analyses showed that wild individuals were roughly classified according to geographical distribution along the Japanese archipelago, except that some wild individuals carried the genetic cluster prevalent in cultivars. Parentage analyses between cultivars and wild individuals identified 26 wild individuals presumed to have a parent–offspring relationship with a cultivar. These results suggested that the genetic structure of some wild individuals in natural stands was influenced by gene flow from cultivars. To conserve wild individuals carrying true “wild” genetic clusters, these individuals should be collected and preserved by ex situ conservation programs.
format	article
author	Sogo Nishio Norio Takada Shingo Terakami Yukie Takeuchi Megumi K. Kimura Keiya Isoda Toshihiro Saito Hiroyuki Iketani
author_facet	Sogo Nishio Norio Takada Shingo Terakami Yukie Takeuchi Megumi K. Kimura Keiya Isoda Toshihiro Saito Hiroyuki Iketani
author_sort	Sogo Nishio
title	Genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands
title_short	Genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands
title_full	Genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands
title_fullStr	Genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands
title_full_unstemmed	Genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands
title_sort	genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/d310340f41c949d18704ffcaa9d3f615
work_keys_str_mv	AT sogonishio geneticstructureanalysisofcultivatedandwildchestnutpopulationsrevealsgeneflowfromcultivarstonaturalstands AT noriotakada geneticstructureanalysisofcultivatedandwildchestnutpopulationsrevealsgeneflowfromcultivarstonaturalstands AT shingoterakami geneticstructureanalysisofcultivatedandwildchestnutpopulationsrevealsgeneflowfromcultivarstonaturalstands AT yukietakeuchi geneticstructureanalysisofcultivatedandwildchestnutpopulationsrevealsgeneflowfromcultivarstonaturalstands AT megumikkimura geneticstructureanalysisofcultivatedandwildchestnutpopulationsrevealsgeneflowfromcultivarstonaturalstands AT keiyaisoda geneticstructureanalysisofcultivatedandwildchestnutpopulationsrevealsgeneflowfromcultivarstonaturalstands AT toshihirosaito geneticstructureanalysisofcultivatedandwildchestnutpopulationsrevealsgeneflowfromcultivarstonaturalstands AT hiroyukiiketani geneticstructureanalysisofcultivatedandwildchestnutpopulationsrevealsgeneflowfromcultivarstonaturalstands
_version_	1718395252556955648

Genetic structure analysis of cultivated and wild chestnut populations reveals gene flow from cultivars to natural stands

Ejemplares similares