John, K.J. Scariah, S. Nissar, V.A.M. Latha, M. Gopalakrishnan, S. Yadav, S.R. Bhat, K.V. 2012 On the occurrece, distribution, taxonomy and genepool relationship of Cucumis callosus (Rottler) Cogn., the wild progenitor of Cucumis melo L. from India
Ana Carolina de Assis Dantas, Ioná Santos Araújo Holanda, Cristina Esteras, Glauber Henrique de Sousa Nunes, and Maria Belén Picó
Chalita Sriladda, Heidi A. Kratsch, Steven R. Larson, and Roger K. Kjelgren
Association, 2012 ), but it is difficult to determine which species are actually being sold. Difficulty in determining species decreases consumer confidence in these species. Leaf morphology was used as the first taxonomic key to separate these species into
Jon Y. Suzuki, Tracie K. Matsumoto, Lisa M. Keith, and Roxana Y. Myers
of psbK-psbI amplicon size patterns among sectional groups. Increased sampling as well as reverification of source material should in addition aid in vetting errors in taxonomic identification of samples that might be the origin of peculiar results
Ryan N. Contreras and John M. Ruter
( Goldblatt and Johnson, 1979 ) publishes newly reported chromosome counts from 1979 onward and does not contain any counts for Callicarpa . Nearly 50 years ago, Santamour (1965) called for a “critical cyto-taxonomic treatment study of a large number of
Robert J. Rouse, Paul R. Fantz, and Ted E. Bilderback
Japanese cedar [Cryptomeria japonica (Thun. ex L.f.) D. Don. (Taxodiaceae)] cultivars have become quite popular in the U.S. landscape and nursery industries. Their popularity is expected to increase as more attractive and adaptable horticultural selections gain recognition. Taxonomic problems include an inadequate inventory of selected variants cultivated in the United States, instability of names at the infraspecific taxonomic level, poor descriptions of the cultivars, and a lack of representative specimens and identification aids to help horticulturists identify unknown specimens. A study of Cryptomeria japonica cultivated in the United States is needed to address these problems.
Min Fan, Yike Gao, Yaohui Gao, Zhiping Wu, Hua Liu, and Qixiang Zhang
Numerical Taxonomy Multivariate Analysis System (NTSYS-pc) version 2.10 software with SIMQUAL module to calculate genetic similarity (GS) coefficients based on coefficient for similarity matching ( Rohlf, 1998 ). A neighbor-joining (NJ) dendrogram was
Jason D. Lattier and Ryan N. Contreras
Genome size variation can be used to investigate biodiversity, taxonomic relationships, and genome evolution among related taxa ( Greilhuber, 1998 ; Rounsaville and Ranney, 2010 ; Shearer and Ranney, 2013 ; Zonneveld and Duncan, 2010 ; Zonneveld
Guangtian Cao, Tingting Song, Yingyue Shen, Qunli Jin, Weilin Feng, Lijun Fan, and Weiming Cai
OTUs were unique in M1 and AF1, respectively ( Fig. 1C ). Fig. 1. Operational taxonomic unit analysis of bacterial communities in wheat straw substrates ( A–C ). Top 10 bacterial phyla ( D ) and genera ( E ) of bacterial communities in wheat straw
Wes Messinger, Aaron Liston, and Kim Hummer
The Pacific Northwest boasts a remarkable diversity of wild currants and gooseberries (Ribes). Of nearly 150 species worldwide, 34 occur in the region. All but two infrageneric taxa are represented, including close relatives of the black currants, red currants, and cultivated gooseberries. High ecological diversity parallels this taxonomic diversity: a Ribes species occurs in nearly every terrestrial habitat, from sea level to above treeline, and from swamp to desert. This diversity is a valuable source of agronomically important genes for the plant breeder. In addition, wild Ribes represent a relatively unexplored source of ornamental shrubs. Habit and habitat of a number of species of interest are described and illustrated. An annotated list of species, subspecies, and varieties native to the Pacific Northwest is presented with discussion of taxonomic proximity to Cultivated varieties, range, natural habitat, and ornamental potential.
Seeds and cladodes (stems) of cultivated Opuntia species were analyzed for fatty acids using gas chromatography. The major fatty acids found in the cladode tissues were myristic (14:0), palmitic (16:0), stearic (18:0), arachidic (20:0), and behenic (22:0). The seeds contained predominantly palmitic, stearic, and behenic acids. Significant differences, both in content and composition of fatty acids, exist among the species so that fatty acid profiles may be useful as taxonomic markers for the differentiation of cultivated Opuntia species.