Relationships Among Astereae (Compositae) Genera Having X=6
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Gene number in species of Astereae that have different chromosome numbers.
Differences in the gametic chromosome numbers (n = 4, 5, 9) of species in the Astereae tribe of the Compositae have been variously interpreted. One hypothesis proposes that n = 9 was the original base number of the group and that the lower numbers resulted from aneuploid reduction. The alternative hypothesis asserts that the ancestral base number was n = 4 or n = 5 and that species in which n =...
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Members of several genera of Asteraceae, belonging to the tribes Mutisieae, Cardueae, Lactuceae (all subfamily Cichorioideae), and of Astereae, Senecioneae, Helenieae and Heliantheae (all subfamily Asteroideae) have been analyzed for chemodiversity of their exudate flavonoid profiles. The majority of structures found were flavones and flavonols, sometimes with 6- and/or 8-substitution, and with...
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GRANT, B. R., AND P. R. GRANT. 1981. Exploitation of Opuntia cactus by birds on the Galapagos. Oecologia 49:179-187. HESLOP-HARRISON, J. 1957. The experimental modification of sex expression in flowering plants. BioI. Rev. Cambro Phil. Soc. 32:38-90. KORES, P. J. 1979. Taxonomy and pollination in the wild Hawaiian orchids. M.S. Thesis. Univ. Hawaii, Honolulu. LoWREY, T. K., AND D. J. CRAWFORD. ...
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تاریخ انتشار 2015