Karyotypes in Leucadendron (Proteaceae): evidence of primitiveness of the genus

Hui Liu; Guijun Yan; Fucheng Shan; R. Sedgley

doi:10.1111/j.1095-8339.2006.00532.x

Karyotypes in Leucadendron (Proteaceae): evidence of primitiveness of the genus

Hui Liu
, Guijun Yan
, Fucheng Shan
, R. Sedgley

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Karyotypes of 27 species in Leucadendron are analysed for the first time. New chromosome counts are reported for 15 species, with 2n = 26 occurring in all of them. Karyotype analysis indicated that chromosomes of Leucadendron taxa are small in size and have predominantly median to submedian centromeres. The mean sizes of somatic metaphase chromosomes ranged from 1.05 to 2.65 mu m. Based on Stebbins' karyotype classification, 1A type was found in L. galpinii, L. muirii, L. orientale, L. platyspermum, L. rubrum, and L. salignum; 2A type in L. conicum, L. flexuosum, L. laureolum, L. meridianum, L. salicifolium, L. stelligerum, and L. teretifolium; and 2B type in L. argenteum, L. chamelaea, L. discolor, L. elimense, L. eucalyptifolium, L. floridum, L. gandogeri, L. linifolium, L. loeriense, L. macowanii, L. procerum, L. spissifolium, L. strobilinum, and L. tinctum. These types are the three most symmetrical karyotypes and are considered to be primitive. (c) 2006 The Linnean Society of London.

Original language	English
Pages (from-to)	387-394
Journal	Botanical Journal of the Linnean Society
Volume	151
Issue number	3
DOIs	https://doi.org/10.1111/j.1095-8339.2006.00532.x
Publication status	Published - 2006

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10.1111/j.1095-8339.2006.00532.x

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@article{492d50a12a0049f8939095f33847e01f,

title = "Karyotypes in Leucadendron (Proteaceae): evidence of primitiveness of the genus",

abstract = "Karyotypes of 27 species in Leucadendron are analysed for the first time. New chromosome counts are reported for 15 species, with 2n = 26 occurring in all of them. Karyotype analysis indicated that chromosomes of Leucadendron taxa are small in size and have predominantly median to submedian centromeres. The mean sizes of somatic metaphase chromosomes ranged from 1.05 to 2.65 mu m. Based on Stebbins' karyotype classification, 1A type was found in L. galpinii, L. muirii, L. orientale, L. platyspermum, L. rubrum, and L. salignum; 2A type in L. conicum, L. flexuosum, L. laureolum, L. meridianum, L. salicifolium, L. stelligerum, and L. teretifolium; and 2B type in L. argenteum, L. chamelaea, L. discolor, L. elimense, L. eucalyptifolium, L. floridum, L. gandogeri, L. linifolium, L. loeriense, L. macowanii, L. procerum, L. spissifolium, L. strobilinum, and L. tinctum. These types are the three most symmetrical karyotypes and are considered to be primitive. (c) 2006 The Linnean Society of London.",

author = "Hui Liu and Guijun Yan and Fucheng Shan and R. Sedgley",

year = "2006",

doi = "10.1111/j.1095-8339.2006.00532.x",

language = "English",

volume = "151",

pages = "387--394",

journal = "Botanical Journal of the Linnean Society",

issn = "0024-4074",

publisher = "Oxford University Press",

number = "3",

}

TY - JOUR

T1 - Karyotypes in Leucadendron (Proteaceae): evidence of primitiveness of the genus

AU - Liu, Hui

AU - Yan, Guijun

AU - Shan, Fucheng

AU - Sedgley, R.

PY - 2006

Y1 - 2006

N2 - Karyotypes of 27 species in Leucadendron are analysed for the first time. New chromosome counts are reported for 15 species, with 2n = 26 occurring in all of them. Karyotype analysis indicated that chromosomes of Leucadendron taxa are small in size and have predominantly median to submedian centromeres. The mean sizes of somatic metaphase chromosomes ranged from 1.05 to 2.65 mu m. Based on Stebbins' karyotype classification, 1A type was found in L. galpinii, L. muirii, L. orientale, L. platyspermum, L. rubrum, and L. salignum; 2A type in L. conicum, L. flexuosum, L. laureolum, L. meridianum, L. salicifolium, L. stelligerum, and L. teretifolium; and 2B type in L. argenteum, L. chamelaea, L. discolor, L. elimense, L. eucalyptifolium, L. floridum, L. gandogeri, L. linifolium, L. loeriense, L. macowanii, L. procerum, L. spissifolium, L. strobilinum, and L. tinctum. These types are the three most symmetrical karyotypes and are considered to be primitive. (c) 2006 The Linnean Society of London.

AB - Karyotypes of 27 species in Leucadendron are analysed for the first time. New chromosome counts are reported for 15 species, with 2n = 26 occurring in all of them. Karyotype analysis indicated that chromosomes of Leucadendron taxa are small in size and have predominantly median to submedian centromeres. The mean sizes of somatic metaphase chromosomes ranged from 1.05 to 2.65 mu m. Based on Stebbins' karyotype classification, 1A type was found in L. galpinii, L. muirii, L. orientale, L. platyspermum, L. rubrum, and L. salignum; 2A type in L. conicum, L. flexuosum, L. laureolum, L. meridianum, L. salicifolium, L. stelligerum, and L. teretifolium; and 2B type in L. argenteum, L. chamelaea, L. discolor, L. elimense, L. eucalyptifolium, L. floridum, L. gandogeri, L. linifolium, L. loeriense, L. macowanii, L. procerum, L. spissifolium, L. strobilinum, and L. tinctum. These types are the three most symmetrical karyotypes and are considered to be primitive. (c) 2006 The Linnean Society of London.

U2 - 10.1111/j.1095-8339.2006.00532.x

DO - 10.1111/j.1095-8339.2006.00532.x

M3 - Article

SN - 0024-4074

VL - 151

SP - 387

EP - 394

JO - Botanical Journal of the Linnean Society

JF - Botanical Journal of the Linnean Society

IS - 3

ER -

Karyotypes in Leucadendron (Proteaceae): evidence of primitiveness of the genus

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