Sexuality and intersterility within the Heterobasidion insulare complex

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	Sexuality and intersterility within the Heterobasidion insulare complex
	Dai, YC; Vainio, EJ; Hantula, J; Niemela, T; Korhonen, K; Korhonen, K, Finnish Forest Res Inst, FIN-01301 Vantaa, Finland
刊名	MYCOLOGICAL RESEARCH
	2002
卷号	106 页码:1435-1448
ISSN号	0953-7562
英文摘要	The sexual system of Heterobasidion insulare was elucidated and 40 specimens originating from the mainland of China, Taiwan, and Japan were studied with the aid of mating tests. Most of the material was also investigated with DNA fingerprinting using random amplified microsatellite (RAMS) and M13 minisatellite primers. Denaturing gradient gel electrophoresis (DGGE) and sequencing were applied for detecting variation in the internally transcribed spacer (ITS) region of the ribosomal DNA cluster. H. insulare proved to be a species complex with bipolar mating system. Clamp connections occurred in both heterokaryotic and homokaryotic mycelia. Three intersterility groups were found: the 'T group' included specimens from Taiwan and Guizhou Province (southern China), the 'N group' specimens from northern China and Japan, and the 'Y group' specimens from Yunnan (south-west China). The T group seems to be totally intersterile with the two other groups, and was grouped separately in neighbour joining analysis based on DNA fingerprints. As concluded from mating experiments, groups N and Y are partially intersterile, but they are able to produce hybrid heterokaryons, no group specific DNA markers were found, and they were grouped together in neighbour joining analysis. The identity of H. insulare sensu stricto was studied from the type collections. It seems that none of the above-presented taxa can be referred to it, and we propose the term H. insulare sensu lato to be used in future studies.
学科主题	Mycology
语种	英语
WOS记录号	WOS:000180850800009
公开日期	2011-09-23
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/55421]
专题	沈阳应用生态研究所_沈阳应用生态研究所
通讯作者	Korhonen, K, Finnish Forest Res Inst, FIN-01301 Vantaa, Finland
推荐引用方式 GB/T 7714	Dai, YC,Vainio, EJ,Hantula, J,et al. Sexuality and intersterility within the Heterobasidion insulare complex[J]. MYCOLOGICAL RESEARCH,2002,106:1435-1448.
APA	Dai, YC,Vainio, EJ,Hantula, J,Niemela, T,Korhonen, K,&Korhonen, K, Finnish Forest Res Inst, FIN-01301 Vantaa, Finland.(2002).Sexuality and intersterility within the Heterobasidion insulare complex.MYCOLOGICAL RESEARCH,106,1435-1448.
MLA	Dai, YC,et al."Sexuality and intersterility within the Heterobasidion insulare complex".MYCOLOGICAL RESEARCH 106(2002):1435-1448.