Cytoplasmic DNA variation in and genetic delimitation of Abies nephrolepis and Abies holophylla in northeastern China

$50.00 plus tax (Refund Policy)

Buy Article:

Abstract:

It has recently been hypothesized that genetic markers experiencing high rates of gene flow would be better suited to differentiate closely related species. We tested this hypothesis by examining genetic variation in the chloroplast (cp) DNA (trnS–trnG and trnL–trnF) and mitochondrial (mt) DNA (nad5 intron 4 and nad7 intron 1) of two fir species, Abies nephrolepis (Trautv.) Maxim. and Abies holophylla Maxim., with overlapping distributions in northeastern China. Two mitotypes were identified; one was common to both species, whereas the other occurred only in A. holophylla. However, four chlorotypes were identified, clustered into two species-specific groups exhibiting distinct mutations; species delimitation using these generated genetic variants was congruent with those obtained by morphological delimitation. Our findings supported the hypotheses that cpDNA, with its high rates of gene flow, is more useful than mtDNA for species delimitation in fir trees. In addition, the low intraspecific diversity observed for both species may result from their repeated range retractions and expansions in response to climatic oscillations in the history.

Document Type: Research Article

DOI: http://dx.doi.org/10.1139/x11-069

Publication date: July 5, 2011

More about this publication?
  • Published since 1971, this monthly journal features articles, reviews, notes and commentaries on all aspects of forest science, including biometrics and mensuration, conservation, disturbance, ecology, economics, entomology, fire, genetics, management, operations, pathology, physiology, policy, remote sensing, social science, soil, silviculture, wildlife and wood science, contributed by internationally respected scientists. It also publishes special issues dedicated to a topic of current interest.
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Terms & Conditions
  • Sample Issue
  • Reprints & Permissions
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more