1977
DOI: 10.1007/bf00985175
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Population cytology of structural and numerical chromosome variants in theAlo�neae (Liliaceae)

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Cited by 26 publications
(18 citation statements)
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“…In Smilacina and Dianella cytotype variation is supported by vegetative reproduction, which is very common (Sen 1975). In Haworthia browniana several asymmetrical exchanges were reported in a single large clone (Brandham and Johnson 1977). Polyploid and aneuploid cytotypes are known in many Liliaceae, including Scilla (Araki 1975, 1977, 1985, Araki et al 1986) and Polygonatum (Tamura 1990).…”
Section: Discussionmentioning
confidence: 99%
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“…In Smilacina and Dianella cytotype variation is supported by vegetative reproduction, which is very common (Sen 1975). In Haworthia browniana several asymmetrical exchanges were reported in a single large clone (Brandham and Johnson 1977). Polyploid and aneuploid cytotypes are known in many Liliaceae, including Scilla (Araki 1975, 1977, 1985, Araki et al 1986) and Polygonatum (Tamura 1990).…”
Section: Discussionmentioning
confidence: 99%
“…In Haworthia browniana several asymmetrical exchanges were reported in a single large clone (Brandham and Johnson 1977). Polyploid and aneuploid cytotypes are known in many Liliaceae, including Scilla (Araki 1975, 1977, 1985, Araki et al 1986) and Polygonatum (Tamura 1990). Heteromorphic bivalents and/or bridges with or without fragment reflect structural changes such as heterozygous inversions, Robertsonian translocations, exchanges, deletions and duplications (Brandham 1970, Brandham and Johnson 1977, Jones 1978, Jones et al 1975, Kenton 1981, Palomino and Vazquez 1991).…”
Section: Discussionmentioning
confidence: 99%
“…A. arborescens y A. humilis presentan cariotipos bimodales con ocho cromosomas grandes y seis pequeños. Incluso el proceso de ortoselección mencionado para el género (Brandham & Johnson 1977) se refuerza con la presencia de bandas heterocromáticas asociadas a las zonas de organización del nucléolo en los brazos largo de los cromosomas grandes de la tres especies estudiadas ( Figs. 1; 3).…”
Section: Heteromorfíasunclassified
“…1c). Se han reportado cambios cromosómicos estructurales dispersos en las poblaciones de una misma especie de Aloe, tales como movimientos Robertsonianos, inversiones paracéntricas y pericéntricas, translocaciones rescíprocas, deleciones, entre otros (Brandham 1969;Sapre 1978;Vij et al 1980); observados por la formación de puentes tipo E, puentes dicéntricos, fragmentos acéntricos, bucles, entre otras aberraciones meióticas (Brandham 1969;Brandham & Johnson 1977). Sin embargo, estas variaciones no son comunes dentro y entre especies, por acción de la selección positiva hacia la uniformidad del cariotipo -ortoselección - (Brandham & Doherty 1998).…”
Section: Heteromorfíasunclassified
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