Abstract:
Nuclear DNA contents were determined by flow cytometry for 20 populations of the perennial C 4 shrub Atriplex halimus L. (Chenopodiaceae) originating from the Mediterranean basin and Fuerteventura (Canary Islands). Two populations were also analysed for chromosome number: one (from Ibiza, Spain), with a 2C nuclear DNA content of 2.40 pg, was shown to be diploid (2n = 2x = 18), whilst the other (from Sicily, Italy), with 5.11 pg, was tetraploid (2n = 2x = 36). With respect to nuclear DNA content, two groups of populations were detected, diploids with 2.40-2.44 pg and tetraploids with 4.77-5.13 pg. The diploid populations were mainly from the western Mediterranean (Spain and France) and Fuerteventura, whereas tetraploids were generally, but not exclusively, from more arid areas in North Africa and the eastern Mediterranean. In general, the diploid and tetraploid populations corresponded to the subspecies halimus and schweinfurthii, respectively. For certain populations having morphologies intermediate between those considered typical of these two subspecies, nuclear DNA contents showed them to be tetraploid. There was significant variation in nuclear DNA content among the tetraploid populations, with greater values in the more easterly populations. © 2005 The Linnean Society of London.
Registro:
Documento: |
Artículo
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Título: | Determination of ploidy and nuclear DNA content in populations of Atriplex halimus (Chenopodiaceae) |
Autor: | Walker, D.J.; Moñino, I.; González, E.; Frayssinet, N.; Correal, E. |
Filiación: | Depto. Recurs. Nat. Desarrollo Rural, Inst. Murciano Invest. Desarrollo A., Estación Sericícola, Calle Mayor s/n, 30150 La Alberca, Murcia, Spain Fac. de Ciencias Exactas Y Naturales, UNPSJB, Comodoro Rivadavia, Argentina Facultad de Agronomía, Universidad de Buenos Aires, Avenida San Martín 4453, Buenos Aires, Argentina
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Idioma: |
Inglés
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Palabras clave: | Flow cytometry; Intraspecific variation; Subspecies; DNA; flow cytometry; intraspecific variation; ploidy; Atlantic islands; Atlantic Ocean; Canary Islands; Eastern Hemisphere; Eurasia; Europe; Fuerteventura; Las Palmas; Macaronesia; Mediterranean Region; Mediterranean Sea; oceanic regions; Southern Europe; Spain; World; Acer pensylvanicum; Amaranthaceae; Atriplex; Atriplex halimus |
Año: | 2005
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Volumen: | 147
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Número: | 4
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Página de inicio: | 441
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Página de fin: | 448
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DOI: |
http://dx.doi.org/10.1111/j.1095-8339.2004.00379.x |
Título revista: | Botanical Journal of the Linnean Society
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Título revista abreviado: | Bot. J. Linn. Soc.
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ISSN: | 00244074
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CODEN: | BJLSA
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00244074_v147_n4_p441_Walker |
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Citas:
---------- APA ----------
Walker, D.J., Moñino, I., González, E., Frayssinet, N. & Correal, E.
(2005)
. Determination of ploidy and nuclear DNA content in populations of Atriplex halimus (Chenopodiaceae). Botanical Journal of the Linnean Society, 147(4), 441-448.
http://dx.doi.org/10.1111/j.1095-8339.2004.00379.x---------- CHICAGO ----------
Walker, D.J., Moñino, I., González, E., Frayssinet, N., Correal, E.
"Determination of ploidy and nuclear DNA content in populations of Atriplex halimus (Chenopodiaceae)"
. Botanical Journal of the Linnean Society 147, no. 4
(2005) : 441-448.
http://dx.doi.org/10.1111/j.1095-8339.2004.00379.x---------- MLA ----------
Walker, D.J., Moñino, I., González, E., Frayssinet, N., Correal, E.
"Determination of ploidy and nuclear DNA content in populations of Atriplex halimus (Chenopodiaceae)"
. Botanical Journal of the Linnean Society, vol. 147, no. 4, 2005, pp. 441-448.
http://dx.doi.org/10.1111/j.1095-8339.2004.00379.x---------- VANCOUVER ----------
Walker, D.J., Moñino, I., González, E., Frayssinet, N., Correal, E. Determination of ploidy and nuclear DNA content in populations of Atriplex halimus (Chenopodiaceae). Bot. J. Linn. Soc. 2005;147(4):441-448.
http://dx.doi.org/10.1111/j.1095-8339.2004.00379.x