Diversity in the wild potato species Solanum chacoense Bitt.

Euphytica ◽  
1988 ◽  
Vol 37 (2) ◽  
pp. 149-156 ◽  
Author(s):  
Susan A. Juned ◽  
M. T. Jackson ◽  
Janet P. Catty
Keyword(s):  
Solanum Chacoense ◽  
Wild Potato ◽  
Wild Potato Species ◽  
Potato Species ◽  
In The Wild

scholarly journals Rozwój warstw ściennych i otwieranie się pylnika u kilku dzikich gatunków ziemniaka (Solarium chacoense Bitt., S. phureja Juz. et Buk., 5. giberulosum Juz. et Buk., S. Commersonii Dun.) [The development of the parietal layers and dehiscence of the anthers at some wild potato species (Solanum chacoense Bitt., S. phureja Juz. et Buk., S. giberulosum Juz. et Buk., and S. Commersonii Dun.]

2015 ◽  
Vol 28 (1) ◽  
pp. 89-93
Author(s):  
L. Hausbrandt ◽  
W. Golinowski
Keyword(s):  
Single Layer ◽  
Solanum Chacoense ◽  
Wild Potato ◽  
Wild Potato Species ◽  
Potato Species ◽  
Compact Mass ◽  
Apical Pore

The anthers in these species like in whole genus <i>Solanum</i> are poricidal still some differences have been observed in structure of their anther walls. The fibrous cells associated with dehiscence restricted usually to the area around the pore may form a single layer or may form compact mass often irregular in thickness or it may be lacking at all. Besides the apical pore one can observe a lateral dehiscence. By desintegra-tion of cells a gap is forming in the wall separating the two anther chambers which causes breaking it down. Then stomium like cells in epidermis contribute to the lateral opening.

scholarly journals A Test of Taxonomic and Biogeographic Predictivity: Resistance to Potato virus Y in Wild Relatives of the Cultivated Potato

2011 ◽  
Vol 101 (9) ◽  
pp. 1074-1080 ◽  
Author(s):  
X. K. Cai ◽  
D. M. Spooner ◽  
S. H. Jansky
Keyword(s):  
Potato Virus ◽  
Potato Virus Y ◽  
Endosperm Balance Number ◽  
Wild Potato ◽  
Wild Potato Species ◽  
Potato Species ◽  
Cross Compatibility ◽  
Taxonomic Research ◽  
Level Of Selection ◽  
High Elevations

A major justification for taxonomic research is its assumed ability to predict the presence of traits in a group for which the trait has been observed in a representative subset of the group. Similarly, populations in similar environments are expected to be more alike than populations in divergent environments. Consequently, it is logical to assume that taxonomic relationships and biogeographical data have the power to predict the distribution of disease resistance phenotypes among plant species. The objective of this study was to test predictivity in a group of widely distributed wild potato species, based on hypotheses that closely related organisms (taxonomy) or organisms from similar environments (biogeography) share resistance to a simply inherited trait (Potato virus Y [PVY]). We found that wild potato species with an endosperm balance number (EBN) of 1 (a measure of cross compatibility) shared resistances to PVY more than species with different EBN values. However, a large amount of variation was found for resistance to PVY among and within species. We also found that populations from low elevations were more resistant than those from high elevations. Because PVY is vectored by aphids, we speculate that the distribution of aphids may determine the level of selection pressure for PVY resistance.

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