Summary: Phytologia (August 2009) 91(2) 353
VARIATION IN JUNIPERUS DURANGENSIS AND RELATED
ANALYSIS OF nrDNA AND petN SNPs
Robert P. Adams
Biology Department, Baylor University, Waco, TX 76798, USA
Recent discovery of a low shrub from Topia, in the state of
Durango, Mexico that appears similar to both J. durangensis and J.
jaliscana, prompted the analyses of nrDNA and petN-psbM (cpDNA)
SNPs. The plants from Topia differed from J. durangensis by 2 indels
but were shown to be closely related as shown in a minimum spanning
network. Phytologia 91(2): 353-358 (August, 2009).
KEY WORDS: Juniperus durangensis, J. monticola, J. martinezii, J.
flaccida, nrDNA, petN-psbM, SNPs, Cupressaceae, geographic variation.
Juniperus durangensis Mart. is a tree or large shrub to 5 m that
generally branches near the base (Adams, 2008). It is often found on
rhyolite, a nutrient poor rocky volcanic substrate, in the mountains of
western Mexico from Sonora and Chihuahua southward to