The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.

Domestication can influence many functional traits in plants, from overall life-history and growth form to wood density and cell wall ultrastructure. Such changes can increase fitness of the domesticate in agricultural environments but may negatively affect survival in the wild. We studied effects o...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Léa Ménard, Doyle McKey, Gilda S Mühlen, Bruno Clair, Nick P Rowe
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/5c33db19ef2c4533bcee3c2047801290
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:5c33db19ef2c4533bcee3c2047801290
record_format	dspace
spelling	oai:doaj.org-article:5c33db19ef2c4533bcee3c20478012902021-11-18T08:56:50ZThe evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.1932-620310.1371/journal.pone.0074727https://doaj.org/article/5c33db19ef2c4533bcee3c20478012902013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24023960/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203Domestication can influence many functional traits in plants, from overall life-history and growth form to wood density and cell wall ultrastructure. Such changes can increase fitness of the domesticate in agricultural environments but may negatively affect survival in the wild. We studied effects of domestication on stem biomechanics in manioc by comparing domesticated and ancestral wild taxa from two different regions of greater Amazonia. We compared mechanical properties, tissue organisation and wood characteristics including microfibril angles in both wild and domesticated plants, each growing in two different habitats (forest or savannah) and varying in growth form (shrub or liana). Wild taxa grew as shrubs in open savannah but as lianas in overgrown and forested habitats. Growth form plasticity was retained in domesticated manioc. However, stems of the domesticate showed brittle failure. Wild plants differed in mechanical architecture between shrub and liana phenotypes, a difference that diminished between shrubs and lianas of the domesticate. Stems of wild plants were generally stiffer, failed at higher bending stresses and were less prone to brittle fracture compared with shrub and liana phenotypes of the domesticate. Biomechanical differences between stems of wild and domesticated plants were mainly due to changes in wood density and cellulose microfibril angle rather than changes in secondary growth or tissue geometry. Domestication did not significantly modify "large-scale" trait development or growth form plasticity, since both wild and domesticated manioc can develop as shrubs or lianas. However, "finer-scale" developmental traits crucial to mechanical stability and thus ecological success of the plant were significantly modified. This profoundly influenced the likelihood of brittle failure, particularly in long climbing stems, thereby also influencing the survival of the domesticate in natural situations vulnerable to mechanical perturbation. We discuss the different selective pressures that could explain evolutionary modifications of stem biomechanical properties under domestication in manioc.Léa MénardDoyle McKeyGilda S MühlenBruno ClairNick P RowePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 9, p e74727 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Léa Ménard Doyle McKey Gilda S Mühlen Bruno Clair Nick P Rowe The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.
description	Domestication can influence many functional traits in plants, from overall life-history and growth form to wood density and cell wall ultrastructure. Such changes can increase fitness of the domesticate in agricultural environments but may negatively affect survival in the wild. We studied effects of domestication on stem biomechanics in manioc by comparing domesticated and ancestral wild taxa from two different regions of greater Amazonia. We compared mechanical properties, tissue organisation and wood characteristics including microfibril angles in both wild and domesticated plants, each growing in two different habitats (forest or savannah) and varying in growth form (shrub or liana). Wild taxa grew as shrubs in open savannah but as lianas in overgrown and forested habitats. Growth form plasticity was retained in domesticated manioc. However, stems of the domesticate showed brittle failure. Wild plants differed in mechanical architecture between shrub and liana phenotypes, a difference that diminished between shrubs and lianas of the domesticate. Stems of wild plants were generally stiffer, failed at higher bending stresses and were less prone to brittle fracture compared with shrub and liana phenotypes of the domesticate. Biomechanical differences between stems of wild and domesticated plants were mainly due to changes in wood density and cellulose microfibril angle rather than changes in secondary growth or tissue geometry. Domestication did not significantly modify "large-scale" trait development or growth form plasticity, since both wild and domesticated manioc can develop as shrubs or lianas. However, "finer-scale" developmental traits crucial to mechanical stability and thus ecological success of the plant were significantly modified. This profoundly influenced the likelihood of brittle failure, particularly in long climbing stems, thereby also influencing the survival of the domesticate in natural situations vulnerable to mechanical perturbation. We discuss the different selective pressures that could explain evolutionary modifications of stem biomechanical properties under domestication in manioc.
format	article
author	Léa Ménard Doyle McKey Gilda S Mühlen Bruno Clair Nick P Rowe
author_facet	Léa Ménard Doyle McKey Gilda S Mühlen Bruno Clair Nick P Rowe
author_sort	Léa Ménard
title	The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.
title_short	The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.
title_full	The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.
title_fullStr	The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.
title_full_unstemmed	The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.
title_sort	evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/5c33db19ef2c4533bcee3c2047801290
work_keys_str_mv	AT leamenard theevolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT doylemckey theevolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT gildasmuhlen theevolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT brunoclair theevolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT nickprowe theevolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT leamenard evolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT doylemckey evolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT gildasmuhlen evolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT brunoclair evolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness AT nickprowe evolutionaryfateofphenotypicplasticityandfunctionaltraitsunderdomesticationinmaniocchangesinstembiomechanicsandtheappearanceofstembrittleness
_version_	1718421142894542848

The evolutionary fate of phenotypic plasticity and functional traits under domestication in manioc: changes in stem biomechanics and the appearance of stem brittleness.

Ejemplares similares