Ackk-tell me, I'm not alone in my frustration with...?!? - Page 2

PR-Giants · 02-22-2014, 09:06 PM

Four natural widespread BSV species have thus far been
identified as integrants: Banana streak Obino l’Ewai virus
(BSOlV), Banana streak Imove´ virus (BSImV), Banana streak
Mysore virus, and Banana streak Goldfinger virus (BSGfV).
In banana, abiotic stresses such as micropropagation by in vitro
culture processes and genetic hybridization are known
to contribute to triggering the production of episomal BSV.

BSV is a plant bacilliform pararetrovirus belonging to the
family Caulimoviridae and the genus Badnavirus. BSV is
one of five described viruses of banana (genus Musa) and
plantain. This virus causes streak mosaic disease, which had
until recently never been considered a serious threat.
However, in the last 15 years, numerous spontaneous outbreaks
of the disease have occurred in all banana-producing
areas among promising banana breeding lines and micropropagated
interspecific Musa hybrids, all originating from virus-free
parents. The origin of these outbreaks was correlated with the
presence of EPRVs in the genome of the cultivars. This phenomenon
has contributed to the widespread distribution of
BSV within banana-producing areas. Two types of BSV related
EPRVs have been described thus far in banana. The
first type is defined by noninfectious sequences with nonfunctional
viral open reading frames (ORFs) containing premature
stop codons, frameshift mutations, and/or incomplete viral genomes.
Such BSV EPRVs are present in the two most common
Musa species from which most cultivated banana is derived:
Musa acuminata (denoted A) and Musa balbisiana (denoted B).
BSV EPRVs of the other, so-called infectious type contain
the complete functional viral genome.

Lawler · 02-22-2014, 11:21 PM

Mark and K J,
Wow- thanks for the info. VERY interesting. I'm fairly learned with genetics and it never ceases to amaze me ... now with bananas and viruses... very interesting!
Thanks again for the information.

PR-Giants · 02-23-2014, 09:33 AM

I would recommend the shorter PK if you're getting a pup and a PC if you want a tissue culture.

I've never been interested in researching if or when the "Improved" Mysore actually happened,

but it's difficult not to notice it might just be a typo.

Banana streak virus species Goldfinger, Imové, Mysore and Obino l’Ewaï

Quote:

Originally Posted by Abnshrek

Pisang Ceylon (PC) is an Improved Mysore.. :^)

Quote:

Originally Posted by venturabananas

Yes, the improvement is resistance to banana streak virus. Otherwise, I think you will find the variety that commonly goes by the name "Mysore" to be indistinguishable from Pisang Ceylan. Get PC, not Mysore.

PR-Giants · 02-23-2014, 09:41 AM

Quote:

Originally Posted by Lawler

Wow- thanks for the info. VERY interesting.

If you're willing to read scientific literature, then all the info is easy to find once you know where to look.

Start with the US Gateway, I'll also bump the thread.

http://www.bananas.org/f2/links-help...tml#post238080

Lawler · 02-23-2014, 10:48 AM

Quote:

Originally Posted by PR-Giants

I would recommend the shorter PK if you're getting a pup and a PC if you want a t/c.

Okay... still learning the acronyms... I know 'PK' and 'PC"... but what is "t/c"

...tolerant to cold?

ez · 02-23-2014, 11:58 AM

Quote:

Originally Posted by Lawler

Okay... still learning the acronyms... I know 'PK' and 'PC"... but what is "t/c"

...tolerant to cold?

t/c = Tissue Culturing - Bananas Wiki

02-22-2014, 09:06 PM	#21 (permalink)
PR-Giants Commercial Grower Location: Florida & Greater Antilles Find me on the map! Join Date: Feb 2012 Posts: 4,617 BananaBucks : 1,608 Feedback: 16 / 100% Said "Thanks" 2,927 Times Was Thanked 12,653 Times in 3,694 Posts Said "Welcome to Bananas" 3,215 Times	Re: Ackk-tell me, I'm not alone in my frustration with...?!? Four natural widespread BSV species have thus far been identified as integrants: Banana streak Obino l’Ewai virus (BSOlV), Banana streak Imove´ virus (BSImV), Banana streak Mysore virus, and Banana streak Goldfinger virus (BSGfV). In banana, abiotic stresses such as micropropagation by in vitro culture processes and genetic hybridization are known to contribute to triggering the production of episomal BSV. BSV is a plant bacilliform pararetrovirus belonging to the family Caulimoviridae and the genus Badnavirus. BSV is one of five described viruses of banana (genus Musa) and plantain. This virus causes streak mosaic disease, which had until recently never been considered a serious threat. However, in the last 15 years, numerous spontaneous outbreaks of the disease have occurred in all banana-producing areas among promising banana breeding lines and micropropagated interspecific Musa hybrids, all originating from virus-free parents. The origin of these outbreaks was correlated with the presence of EPRVs in the genome of the cultivars. This phenomenon has contributed to the widespread distribution of BSV within banana-producing areas. Two types of BSV related EPRVs have been described thus far in banana. The first type is defined by noninfectious sequences with nonfunctional viral open reading frames (ORFs) containing premature stop codons, frameshift mutations, and/or incomplete viral genomes. Such BSV EPRVs are present in the two most common Musa species from which most cultivated banana is derived: Musa acuminata (denoted A) and Musa balbisiana (denoted B). BSV EPRVs of the other, so-called infectious type contain the complete functional viral genome. __________________ PR-Giants Photo Gallery 15,000+ Varieties

02-22-2014, 11:21 PM	#22 (permalink)
Lawler Location: WSW Houston, TX by 45 min. Zone: 8b/9 Name: Lawler Join Date: Jul 2013 Posts: 146 BananaBucks : 94,884 Feedback: 2 / 100% Said "Thanks" 317 Times Was Thanked 74 Times in 37 Posts Said "Welcome to Bananas" 3 Times	Re: Ackk-tell me, I'm not alone in my frustration with...?!? Mark and K J, Wow- thanks for the info. VERY interesting. I'm fairly learned with genetics and it never ceases to amaze me ... now with bananas and viruses... very interesting! Thanks again for the information. __________________ These are the 'good ole days'.

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