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A new polyploid species of mecardonia (gratioleae, plantaginaceae) from South America
(Magnolia Press, 2017-04-13)
Mecardonia reneeae, a new species from northeastern Argentina, is described and illustrated. This taxon has certain resem-
blance to M. procumbens var. flagellaris, but can be easily distinguished by the combination of ...
Study of the somaclonal variation produced by different methods of polyploidization in Asparagus officinalis L.
(Springer, 2015-06)
Polyploid plants have been induced in different Asparagus officinalis L. breeding programs in order to obtain plants with improved agronomical traits, such as large spear diameter or segregation ratios with a higher number ...
Erythrocyte nuclear size as a better diagnostic character than cell size in the identification of live cryptic polyploid species
(Magnolia Press, 2013-08)
It is well documented in anurans the cryptic condition of many species complexes involving polyploids. In these complexes the character that clearly differentiates them is the number of chromosome complements. The blood ...
A new polyploid species of Mecardonia (Gratioleae, Plantaginaceae) from South America
(Magnolia Press, 2017-04)
Mecardonia reneeae, a new species from northeastern Argentina, is described and illustrated. This taxon has certain resemblance to M. procumbens var. flagellaris, but can be easily distinguished by the combination of life ...
Genome downsizing and karyotype constancy in diploid and polyploid congeners: a model of genome size variation
(Oxford University Press, 2014-09)
Evolutionary chromosome change involves significant variation in DNA amount in diploids and genome downsizing in polyploids. Genome size and karyotype parameters of Hippeastrum species with different ploidy level were ...
Nuclear DNA content in the polyploid complex Turnera ulmifolia (Turnera L., Passifloraceae)
(Springer Wien, 2011-10)
Turnera ulmifolia constitutes a well-studied polyploid complex with allo- and autopolyploid species ranging from 2 to 8x. Flow cytometry was used to determine nuclear DNA content, and to estimate 2C- and 1Cx-values with ...
Evidence of the production of 2n eggs in diploid plants of the autopolyploid complex turnera sidoides L. (passifloraceae)
(Springer, 2015)
Turnera sidoides is a complex of dystilous perennial rhizomatous herbs with five subspecies in which diploid (2n = 2x = 14) to octoploid (2n = 8x = 56) cytotypes were found. Previous studies have suggested an autopolyploid ...
Effect of polyploidization in the production of essential oils in Lippia integrifolia
(Elsevier Science, 2016-03)
Consumption of medicinal and aromatic plants is widespread and increasing worldwide. Yet, harvesting from the wild, the main source of raw material in developing countries, is causing loss of genetic diversity and habitat ...
Cytogeography and morphological characterisation of a taxonomic, polyploid complex of Mimosa (Leguminosae) from subtropical South America
(Csiro Publishing, 2018-04)
Mimosa subseries Dolentes Barneby and Brevipedes Barneby are ecologically and morphologically high-diversified infrageneric taxa of this genus in southern South America. We performed a cytogenetical and morphological ...
Sporophytic apomixis in polyembryonic Handroanthus serratifolius (Vahl) SO Grose (Bignoniaceae) characterizes the species as an agamic polyploid complex
(Springer, 2016-06-01)
Neopolyploidy has been associated with gametophytic apomixis and breakdown of gametophytic self-incompatibility. Nevertheless, Bignoniaceae presents agamic polyploid complexes with neopolyploidy associated to sporophytic ...