Genetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa

Taro and new cocoyam are root and leaf crops commonly grown in tropical to warm temperate regions. In Togo, they are neglected and underutilised. Here we report the genetic diversity of 26 accessions of taro and 101 accessions of new cocoyam. Analysis of simple sequence repeats revealed low polymor...

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Autores principales:	Damigou Bammite, Peter Joseph Matthews, Yao Dodzi Dagnon, Akouèthê Agbogan, Paterne Agre, Oluyemi Titilola Akintayo, Komi Odah, Alexandre Dansi, Michael Abberton, Koffi Sodokè Tozo
Formato:	article
Lenguaje:	EN
Publicado:	Firenze University Press 2021
Materias:	Crop diversity new cocoyam SSR taro Togo Biology (General) QH301-705.5 Botany QK1-989
Acceso en línea:	https://doaj.org/article/99ccc4fa96ae42179a095b2d91529ccd
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spelling	oai:doaj.org-article:99ccc4fa96ae42179a095b2d91529ccd2021-11-08T13:15:33ZGenetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa10.36253/ahsc-96890394-61691592-1573https://doaj.org/article/99ccc4fa96ae42179a095b2d91529ccd2021-07-01T00:00:00Zhttps://oaj.fupress.net/index.php/ahs/article/view/9689https://doaj.org/toc/0394-6169https://doaj.org/toc/1592-1573 Taro and new cocoyam are root and leaf crops commonly grown in tropical to warm temperate regions. In Togo, they are neglected and underutilised. Here we report the genetic diversity of 26 accessions of taro and 101 accessions of new cocoyam. Analysis of simple sequence repeats revealed low polymorphic information content of 0.43 and 0.25 in taro and new cocoyam, respectively. PCA scatterplots and Neighbour Joining dendrograms based on the SSR data clustered accessions into groups that more-or-less correspond to morphological diversity in both species. AMOVA within and between morphological groups revealed greater variances within groups than between. This indicates weak genetic differentiation between morphological groups, particularly for taro. Genetic diversity was greater among taro cultivars. Taro has a longer history of introduction and dispersal in Africa, and has had more opportunity for multiple introduction and local cultivar development. Different strategies are suggested for future development of these crops in Togo and Africa. For taro, further studies of existing diversity and recent experimental introduction, has spread widely in Africa with little genetic diversity. For this crop, international collaboration is needed to clarify taxonomy, and to introduced further cultivars for evaluation under local conditions in Africa. Damigou BammitePeter Joseph MatthewsYao Dodzi DagnonAkouèthê AgboganPaterne AgreOluyemi Titilola AkintayoKomi OdahAlexandre DansiMichael AbbertonKoffi Sodokè TozoFirenze University PressarticleCrop diversitynew cocoyamSSRtaroTogoBiology (General)QH301-705.5BotanyQK1-989ENAdvances in Horticultural Science, Vol 35, Iss 3 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Crop diversity new cocoyam SSR taro Togo Biology (General) QH301-705.5 Botany QK1-989
spellingShingle	Crop diversity new cocoyam SSR taro Togo Biology (General) QH301-705.5 Botany QK1-989 Damigou Bammite Peter Joseph Matthews Yao Dodzi Dagnon Akouèthê Agbogan Paterne Agre Oluyemi Titilola Akintayo Komi Odah Alexandre Dansi Michael Abberton Koffi Sodokè Tozo Genetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa
description	Taro and new cocoyam are root and leaf crops commonly grown in tropical to warm temperate regions. In Togo, they are neglected and underutilised. Here we report the genetic diversity of 26 accessions of taro and 101 accessions of new cocoyam. Analysis of simple sequence repeats revealed low polymorphic information content of 0.43 and 0.25 in taro and new cocoyam, respectively. PCA scatterplots and Neighbour Joining dendrograms based on the SSR data clustered accessions into groups that more-or-less correspond to morphological diversity in both species. AMOVA within and between morphological groups revealed greater variances within groups than between. This indicates weak genetic differentiation between morphological groups, particularly for taro. Genetic diversity was greater among taro cultivars. Taro has a longer history of introduction and dispersal in Africa, and has had more opportunity for multiple introduction and local cultivar development. Different strategies are suggested for future development of these crops in Togo and Africa. For taro, further studies of existing diversity and recent experimental introduction, has spread widely in Africa with little genetic diversity. For this crop, international collaboration is needed to clarify taxonomy, and to introduced further cultivars for evaluation under local conditions in Africa.
format	article
author	Damigou Bammite Peter Joseph Matthews Yao Dodzi Dagnon Akouèthê Agbogan Paterne Agre Oluyemi Titilola Akintayo Komi Odah Alexandre Dansi Michael Abberton Koffi Sodokè Tozo
author_facet	Damigou Bammite Peter Joseph Matthews Yao Dodzi Dagnon Akouèthê Agbogan Paterne Agre Oluyemi Titilola Akintayo Komi Odah Alexandre Dansi Michael Abberton Koffi Sodokè Tozo
author_sort	Damigou Bammite
title	Genetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa
title_short	Genetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa
title_full	Genetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa
title_fullStr	Genetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa
title_full_unstemmed	Genetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa
title_sort	genetic diversity in colocasia esculenta and xanthosoma mafaffa in togo, west africa
publisher	Firenze University Press
publishDate	2021
url	https://doaj.org/article/99ccc4fa96ae42179a095b2d91529ccd
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Genetic diversity in Colocasia esculenta and Xanthosoma mafaffa in Togo, West Africa

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