干旱区生态环境知识资源中心(Arid): Karyotype analysis and polyploidy in Palaua and a comparison with its sister group Fuertesimalva (Malvaceae)

Arid

	Karyotype analysis and polyploidy in Palaua and a comparison with its sister group Fuertesimalva (Malvaceae)
	Julio V SCHNEIDER; Marilu L HUERTAS
来源期刊	Journal of Systematics and Evolution
ISSN	1674-4918
出版年	2010
卷号	48 期号:3 页码:175-182
英文摘要	Palaua (Malveae, Malvaceae) comprises 15 species endemic to the hyperarid coastal desert of Chile and Peru. So far, chromosome counts have been known for two diploid species (2n = 2x = 10) only. Here we report new chromosome numbers for 12 species of Palaua and four of its sister group Fuertesimalva. Karyotypes including 4~'6~'diamidino-2-phenylindole dihydrochloride (DAPI)/chromomycin (CMA_3) fluorescent banding are presented for selected species representative of each of the main clades of Palaua. An important finding is the discovery of polyploids in one exclusively tetraploid species (P. trisepala) and four species with mixed diploid and tetraploid cytotypes (P. dissecta, P. mollendoensis, P. moschata, and P. tomentosa). The diploid and tetraploid karyotypes are all unimodal, symmetrical and show one or two pairs of satellite chromosomes with their associated CMA~+/DAPI~band depending on the cytotype. For some of the tetraploids an autopolyploid origin is suggested.
英文关键词	autopolyploidy chromosome base number desert fluorochrome staining lomas Malveae Urocarpidium
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3894501
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335060
作者单位	Julio V SCHNEIDER, Systematic Botany, Biologie I, University of Leipzig, Leipzig, D-04103, Germany.; Marilu L HUERTAS, Botany and Molecular Evolution, Research Institute and Natural History Museum Senckenberg and Johann Wolfgang Goethe-Universitat, Frankfurt am Main, D-60325, Germany.
推荐引用方式 GB/T 7714	Julio V SCHNEIDER,Marilu L HUERTAS. Karyotype analysis and polyploidy in Palaua and a comparison with its sister group Fuertesimalva (Malvaceae)[J],2010,48(3):175-182.
APA	Julio V SCHNEIDER,&Marilu L HUERTAS.(2010).Karyotype analysis and polyploidy in Palaua and a comparison with its sister group Fuertesimalva (Malvaceae).Journal of Systematics and Evolution,48(3),175-182.
MLA	Julio V SCHNEIDER,et al."Karyotype analysis and polyploidy in Palaua and a comparison with its sister group Fuertesimalva (Malvaceae)".Journal of Systematics and Evolution 48.3(2010):175-182.