NDLI: Genetic diversity and population structure of the endangered alpine quillwort Isoetes hypsophila Hand.-Mazz. revealed by AFLP markers

Content Provider	Springer Nature Link
Author	Chen, Yuan Yuan Liao, Li Li, Wei Li, Zuo Zhou
Copyright Year	2010
Abstract	Isoetes hypsophila Hand.-Mazz. (Isoetaceae) is an endangered quillwort endemic to the Qinghai-Tibetan Plateau. Genetic variation and population structure of 12 I. hypsophila populations were examined by using amplified fragment length polymorphism (AFLP) markers. Eight primer pairs produced a total of 472 unambiguous bands, of which 229 (48.5%) were polymorphic. Intra-population genetic variation of Isoetes hypsophila was low (PP = 14.9%, HE = 0.039, hs = 0.084 and I = 0.061). The F statistics calculated by different approaches consistently revealed high genetic differentiation among populations, contributing approximately 50% of total gene diversity. Four genetic groups corresponding to four geographic regions were detected, indicating significant geographic structure. Our results suggest that both ongoing evolutionary forces (e.g., inbreeding system, bottlenecks resulting from fluctuation of water level) and historical events (e.g., orogenic movements which reduce gene flow among populations, repeated population retreat, and recolonization during ice ages) may have contributed to the genetic structure of I. hypsophila. In conservation, attention should be paid to preserving every population, and intra-region translocations can currently be recommended.
Starting Page	127
Ending Page	139
Page Count	13
File Format	PDF
ISSN	03782697
Journal	Plant Systematics and Evolution
Volume Number	290
Issue Number	1-4
e-ISSN	16156110
Language	English
Publisher	Springer Vienna
Publisher Date	2010-10-05
Publisher Place	Vienna
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	AFLP Aquatic quillwort Genetic structure Isoetes hypsophila Qinghai-Tibetan Plateau Plant Systematics/Taxonomy/Biogeography Plant Anatomy/Development Plant Ecology Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Plant Science Ecology, Evolution, Behavior and Systematics

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