Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae)

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Variation in genome size of 24 populations belonging to 11 NW Patagonian species of Berberis was analysed as a function of the environment and geographical location. The variation showed three levels of discontinuity, two of which corresponded to diploid species (2n = 28) while the third corresponde...

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Autores principales:	Bottini, M.C.J., Greizerstein, E.J., Aulicino, M.B., Poggio, L.
Formato:	Artículo publishedVersion
Lenguaje:	Inglés
Publicado:	2000
Materias:	Barberry Berberis L. Calafate DNA content Environmental correlation Genome size Michay Patagonia environmental conditions genome phytogeography population genetics South America Beberis montana Berberis Berberis bidentata Berberis buxifolia Berberis cabrerae Berberis chillanensis Berberis darwinii Berberis empetrifolia Berberis heterophylla Berberis linearifolia Berberis parodii Berberis serrato-dentata
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_03057364_v86_n3_p565_Bottini
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paperaa:paper_03057364_v86_n3_p565_Bottini
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spelling	paperaa:paper_03057364_v86_n3_p565_Bottini2023-06-12T16:47:33Z Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae) Ann. Bot. 2000;86(3):565-573 Bottini, M.C.J. Greizerstein, E.J. Aulicino, M.B. Poggio, L. Barberry Berberis L. Calafate DNA content Environmental correlation Genome size Michay Patagonia environmental conditions genome phytogeography population genetics Patagonia South America Beberis montana Berberis Berberis bidentata Berberis buxifolia Berberis cabrerae Berberis chillanensis Berberis darwinii Berberis empetrifolia Berberis heterophylla Berberis linearifolia Berberis parodii Berberis serrato-dentata Variation in genome size of 24 populations belonging to 11 NW Patagonian species of Berberis was analysed as a function of the environment and geographical location. The variation showed three levels of discontinuity, two of which corresponded to diploid species (2n = 28) while the third corresponded to polyploid species (2n = 56). Diploids with DNA content ranging from 1.463 pg to 1.857 pg included Berberis cabrerae, B. chillanensis, B. montana, B. serrato-dentata and B. bidentata. Diploids with DNA content ranging from 2.875 pg to 3.806 pg included B. linearifolia, B. darwinii, B. parodii and B. empetrifolia. The genome size of the polyploid species B. buxifolia and B. heterophylla ranged from 5.809 pg to 6.844 pg. Principal component analysis (PCA) was applied to represent the variability of environmental conditions. The eigenvectors of the principal component axes showed that PCl discriminates the populations according to rainfall, types of vegetation and geomorphology; altitude and latitude, on the other hand, contribute to PC2 and PC3, respectively. From these results it is concluded: (1) that diploids with lower DNA content grow in high-elevation sites having greater rainfall but lower water availability; (2) diploids with higher DNA content are associated with half-elevation forests where the vegetative period is longer, the water availability is greater and the temperatures are higher; and (3) the distribution pattern of polyploids is considerably wider than that of diploids, which are geographically and ecologically restricted to forest areas. These results suggest that the C-value plays an important role in the ability of the species to adapt to different growing conditions. (C) 2000 Annals of Botany Company. Fil:Bottini, M.C.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Greizerstein, E.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2000 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03057364_v86_n3_p565_Bottini
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language	Inglés
orig_language_str_mv	eng
topic	Barberry Berberis L. Calafate DNA content Environmental correlation Genome size Michay Patagonia environmental conditions genome phytogeography population genetics Patagonia South America Beberis montana Berberis Berberis bidentata Berberis buxifolia Berberis cabrerae Berberis chillanensis Berberis darwinii Berberis empetrifolia Berberis heterophylla Berberis linearifolia Berberis parodii Berberis serrato-dentata
spellingShingle	Barberry Berberis L. Calafate DNA content Environmental correlation Genome size Michay Patagonia environmental conditions genome phytogeography population genetics Patagonia South America Beberis montana Berberis Berberis bidentata Berberis buxifolia Berberis cabrerae Berberis chillanensis Berberis darwinii Berberis empetrifolia Berberis heterophylla Berberis linearifolia Berberis parodii Berberis serrato-dentata Bottini, M.C.J. Greizerstein, E.J. Aulicino, M.B. Poggio, L. Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae)
topic_facet	Barberry Berberis L. Calafate DNA content Environmental correlation Genome size Michay Patagonia environmental conditions genome phytogeography population genetics Patagonia South America Beberis montana Berberis Berberis bidentata Berberis buxifolia Berberis cabrerae Berberis chillanensis Berberis darwinii Berberis empetrifolia Berberis heterophylla Berberis linearifolia Berberis parodii Berberis serrato-dentata
description	Variation in genome size of 24 populations belonging to 11 NW Patagonian species of Berberis was analysed as a function of the environment and geographical location. The variation showed three levels of discontinuity, two of which corresponded to diploid species (2n = 28) while the third corresponded to polyploid species (2n = 56). Diploids with DNA content ranging from 1.463 pg to 1.857 pg included Berberis cabrerae, B. chillanensis, B. montana, B. serrato-dentata and B. bidentata. Diploids with DNA content ranging from 2.875 pg to 3.806 pg included B. linearifolia, B. darwinii, B. parodii and B. empetrifolia. The genome size of the polyploid species B. buxifolia and B. heterophylla ranged from 5.809 pg to 6.844 pg. Principal component analysis (PCA) was applied to represent the variability of environmental conditions. The eigenvectors of the principal component axes showed that PCl discriminates the populations according to rainfall, types of vegetation and geomorphology; altitude and latitude, on the other hand, contribute to PC2 and PC3, respectively. From these results it is concluded: (1) that diploids with lower DNA content grow in high-elevation sites having greater rainfall but lower water availability; (2) diploids with higher DNA content are associated with half-elevation forests where the vegetative period is longer, the water availability is greater and the temperatures are higher; and (3) the distribution pattern of polyploids is considerably wider than that of diploids, which are geographically and ecologically restricted to forest areas. These results suggest that the C-value plays an important role in the ability of the species to adapt to different growing conditions. (C) 2000 Annals of Botany Company.
format	Artículo Artículo publishedVersion
author	Bottini, M.C.J. Greizerstein, E.J. Aulicino, M.B. Poggio, L.
author_facet	Bottini, M.C.J. Greizerstein, E.J. Aulicino, M.B. Poggio, L.
author_sort	Bottini, M.C.J.
title	Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae)
title_short	Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae)
title_full	Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae)
title_fullStr	Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae)
title_full_unstemmed	Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae)
title_sort	relationships among genome size, environmental conditions and geographical distribution in natural populations of nw patagonian species of berberis l. (berberidaceae)
publishDate	2000
url	http://hdl.handle.net/20.500.12110/paper_03057364_v86_n3_p565_Bottini
work_keys_str_mv	AT bottinimcj relationshipsamonggenomesizeenvironmentalconditionsandgeographicaldistributioninnaturalpopulationsofnwpatagonianspeciesofberberislberberidaceae AT greizersteinej relationshipsamonggenomesizeenvironmentalconditionsandgeographicaldistributioninnaturalpopulationsofnwpatagonianspeciesofberberislberberidaceae AT aulicinomb relationshipsamonggenomesizeenvironmentalconditionsandgeographicaldistributioninnaturalpopulationsofnwpatagonianspeciesofberberislberberidaceae AT poggiol relationshipsamonggenomesizeenvironmentalconditionsandgeographicaldistributioninnaturalpopulationsofnwpatagonianspeciesofberberislberberidaceae
_version_	1769810182579159040

Relationships among genome size, environmental conditions and geographical distribution in natural populations of NW patagonian species of Berberis L. (Berberidaceae)

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