Molecular evidence for a natural hybrid between Isolepis crassiuscula and Isolepis lenticularis (Cyperaceae) in New Zealand

	Molecular evidence for a natural hybrid between Isolepis crassiuscula and Isolepis lenticularis (Cyperaceae) in New Zealand
	Yano, O. ; Tanaka, N. ; Ito, Y.
刊名	NEW ZEALAND JOURNAL OF BOTANY
	2016
卷号	54 期号:4 页码:433-445
ISSN号	0028-825X
中文摘要	Isolepis R.Br. (Cyperaceae) is a genus of aquatic, wetland, or ephemeral sedges that comprises 76 species, mostly in the southern hemisphere, especially Africa and Australasia. Isolepis crassiuscula Hook. f., Isolepis lenticularis R.Br. and Isolepis producta (C.B. Clarke) K.L. Wilson are among the Australasian members of a morphologically well-defined subgenus Fluitantes. Specimens belonging to this subgenus, collected from Mount Tongariro, New Zealand, showed ambiguous yet somewhat intermediate morphology compared with these three species. We sequenced directly, or cloned and sequenced, nuclear DNA (nrITS) and chloroplast DNA (rbcL, rps16 and trnL) regions of these collections and samples of the three aforementioned species of subgenus Fluitantes. Ribotypes and chloroplast haplotypes were compared to resolve if the Tongariro collection was of hybrid origin and, if so, to address which of the three species may have been involved in the hybridisation event. The Tongariro plants had the species-specific ribotypes of I. crassiuscula and I. lenticularis and the chloroplast haplotype of I. lenticularis, strongly suggesting hybrid origin between them. No data support the inclusion of I. producta as a parent. The morphologically uniform population from which the Tongariro plants were collected is likely to be derived from a single hybridisation event, although this hypothesis merits further investigation.
学科主题	Plant Sciences
原文出处	10.1080/0028825X.2016.1205106
语种	英语
公开日期	2017-06-06
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/10443]
专题	西双版纳热带植物园_其他
推荐引用方式 GB/T 7714	Yano, O.,Tanaka, N.,Ito, Y.. Molecular evidence for a natural hybrid between Isolepis crassiuscula and Isolepis lenticularis (Cyperaceae) in New Zealand[J]. NEW ZEALAND JOURNAL OF BOTANY,2016,54(4):433-445.
APA	Yano, O.,Tanaka, N.,&Ito, Y..(2016).Molecular evidence for a natural hybrid between Isolepis crassiuscula and Isolepis lenticularis (Cyperaceae) in New Zealand.NEW ZEALAND JOURNAL OF BOTANY,54(4),433-445.
MLA	Yano, O.,et al."Molecular evidence for a natural hybrid between Isolepis crassiuscula and Isolepis lenticularis (Cyperaceae) in New Zealand".NEW ZEALAND JOURNAL OF BOTANY 54.4(2016):433-445.