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Post by gregallan on Nov 1, 2010 19:15:45 GMT
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Post by Brian Barnes on Nov 2, 2010 14:52:05 GMT
Hi Greg,
Excellent article, thanks for posting the link!
Most interesting is the fact that Byblis filifolia has a diploid and tetraploid form. This blatently shows that the tetraploid (self-pollinating) form of Byblis filifolia could easily be mistaken as a different species of Byblis such as Byblis guehoi to the untrained eye. Especially if self-pollination is used as a main describing factor in species discernment. Until now, all forms of Byblis filifolia were considered to be diploid, i.e. needing two separate seedling clones in order to successfully cross- pollinate and successfully reproduce.
Also keep in mind, that crossing a tetraploid with a diploid produce triploid offspring, which are usually sterile. This could be a major factor in the complaints we've heard regarding little to no germination of Byblis seed acquired from various well- known sources.
It is also a well-known fact that the application of the chemical Colchicine can turn a plant into a tetraploid by doubling the chromosomes. This chemical treatment also can produce larger, more vibrantly colored flowers as well. Very interesting indeed! I truly do wish that the actual identities of the said "commercial growers" as stated in the document had been revealed to us, since this was obviously the source of all of the Byblis material that was presented for the study. I'm sure that would have proved quite interesting as well.
In my opinion, due to such possibility of the use of plant growth regulators such as Colchicine, GA3 and a host of others used in commercial nursery applications, the results of the study although interesting, may not hold as true if the Byblis study material had been harvested from the known populations in the wild.
Happy Growing!
Brian Barnes
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sweetpea
Full Member
MOLLIE RILSTONE
Posts: 163
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Post by sweetpea on Nov 5, 2010 14:02:02 GMT
Konnichiwa!
I do hope the authors. K. Fukushima; K. Imamura; K. Nagano; and Y. Hoshi of the paper “Contrasting patterns of 5S and 45A evolutions…” will add some more Byblis species to their research once they have been formally described by Mr. Allen Lowrie and his colleague Dr John Conran. For example, all the new Byblis species as well as the potential type form of Byblis filifolia from the Biota project that were presented by Mr. Allen Lowrie in his Byblis presentation at the International Carnivorous Plant Society conference in Leiden, The Netherlands in Aug. 2010.
Kind regards
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