Systematic position

Skvarla, J. J. and Turner, B. L. 1966. Pollen wall ultrastmcture and its bearing on the systematic position of Blennosperma and Crocidium (Composistae). Amer. J. Bot. 53 555-563. 

Simpson AGB, van den Hoff J, Bernard C, Burton HR, Patterson DJ (1997) The ultrastructure and systematic position of the euglenozoon Postgaardi mariagerensis, Fenchel et al. Arch Protistenkd 147 213-225... 

Sinnappah, N.D., Lim, L.H.S., Rohde, K., Tinsley, R., Combes, C. and Verneau, O. (2001) A paedomorphic parasite associated with a neotenic amphibian host phylogenetic evidence suggests a revised systematic position for Sphyranuridae within anuran and turtle Polystomatoineans. Molecular Phylogenetics and Evolution 18, 1 89-201. 

From a chemosystematic viewpoint, much remains to be done with the genus Guatteria and its relatives. Aside from the probable discovery of additional new structural types of alkaloids and other secondary metabolites, and in spite of the limited success obtained to date in attempts to correlate the occurrence of particular groups of compounds with the systematic position of their sources, this line of research can still be expected to shed some light on the systematics and evolution of so-called primitive angiosperms. 

The B score (Brideau et al., 2003) is a robust analog of the Z score after median polish it is more resistant to outliers and also more robust to row- and column-position related systematic errors (Table 14.1). The iterative median polish procedure followed by a smoothing algorithm over nearby plates is used to compute estimates for row and column (in addition to plate) effects that are subtracted from the measured value and then divided by the median absolute deviation (MAD) of the corrected measures to robustly standardize for the plate-to-plate variability of random noise. A similar approach uses a robust linear model to obtain robust estimates of row and column effects. After adjustment, the corrected measures are standardized by the scale estimate of the robust linear model fit to generate a Z statistic referred to as the R score (Wu, Liu, and Sui, 2008). In a related approach to detect and eliminate systematic position-dependent errors, the distribution of Z score-normalized data for each well position over a screening run or subset is fitted to a statistical model as a function of the plate the resulting trend is used to correct the data (Makarenkov et al., 2007). 

Tanacetum species contain mainly sesquiterpenoids and flavonoids, whereas the other terpenoids and phenolic compounds are rarely found. Sesquiterpenoids which are the main constituents of the genus, supposed to be bioactive principles of the plants. Flavonoids and essential oils are also pointed out as active substances in some species. On the other hand, there is a confusion on the systematic position and classification of several species of Asteraceae, therefore chemotaxonomy of the species will help the systematic studies. 

Figure 13. The cluster size dependence of the calculated binding energies per atom for a He) cluster (N = 6.5 x 103 to 1.88 x lO ) of radius R without a bubble (marked as cluster) and for a cluster with a bubble at the equilibrium electron bubble radius Rf, (marked as cluster + bubble). The experimental binding energy per atom in the bulk [232, 248], E /N = —0.616 meV (R, N = cxd), is presented (marked as bulk). Previous computational results for the lower size domain N = 128-728 [51-54, 106, 128, 129] are also included. The calculated data for the large (N = 10 —10 ) clusters (A = 6.5 x 1Q3 to 1.88 x 10 ), as well as the bulk value of Ec/N without a bubble, follow a linear dependence versus 1 /R and are represented by the liquid drop model, with the cluster size equation [Eq. (58)] (solid line). The dashed curve connecting the E /N data with a bubble was drawn to guide the eye. The calculated data for the smaller clusters (N = 128) manifest systematic positive deviations from the liquid drop model, caused by the curvature term, which was neglected.

It can be seen from the data points for poly (1,4-butadiene) and polyisoprene in Figure 12.9 that the CM of polymers with all-c/.v double bonds in their backbones deviates only slightly (-10%) from Equation 12.27, while the of polymers with ail-trans double bonds shows a very large systematic positive deviation. These results are also consequences of Equation 12.3. The correlation between o2 and CM for silicone-type polymers (see Figure 12.9) is given by... 

Bardele, C.F., Foissner, W., Blanton, R.L. (1991). Morphology, morphogenesis and systematic position of the sorocarp forming ciliate Sorogena stoianovitchae Bradbury and Olive, 1980. Journal of Protozoology 38,7-17. 

Binda, M.G., Kristensen, R.M. (1986). Notes on the genus Oreella (Oreellidae) and the systematic position of Carphania fluviatilis Binda, 1978 (Carphanidae fam. nov., Heterotardigrada). Animalia 13,9-20. 

Gadow, H. 1892. On the systematic position of Notoryctes typhlops. Proc. Zool Soc. Lond., 1892, 361—370. 

Rydin, C., Kallersjo, M. andPriis, E. M. (2002). Seed plant relationships and the systematic position of Gnetales based on nuclear and chloroplast DNA conflicting data, rooting problems, and the monophyly of conifers. International Journal of Plant Sciences, 163,197-214. 

A comparison of floral structures of AnisophyUeaceae and Cunoniaceae and the problem of their systematic position. Annals of Botany, 88, 439-455. 

BacheUer, ]. B. andEndress, P. K. (2008). Floral structure of KJrkia (Kirkiaceae) and its systematic position in Sapindales. Annals of Botany, 102, 539-550. 

Kamelina, O. P. (1994). Embryology and systematic position of Tetradiclis (Tetradiclidaceae). Botaniceskij Zhurnal (St Petersburg), 79 (5), 11-27. 

Rama Devi, D. (1991). Floral anatomy of Hypseocharis (Oxalidaceae) with a discussion on its systematic position. Plant Systematics and Evolution, 177, 161-164. 

Ivanitskaya LP, Upiter GD, Sveshnikova MA, Gauze CF. Systematic position, variation and antibiotic properties of raiimmycrtin producing organism. Antibioriki 1966 11 973-976. Nozaki Y, Hida T, linuma S. Ishii T, Sudo K, Muroi M, Kanamaru T. TAN-1120. a new anthracycline with potent angiostatic activity. J Antibiot 1993 46 569-579. 

The systematic position of some Upper Permian terebratulide genera... 

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