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03-04-2017, 01:20 AM | #1 |
Senior Dragon
Join Date: Mar 2002
Posts: 3,495
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F1
Seems like many sellers now like to tag their fish as F1. What exactly qualify it as F1?
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03-04-2017, 10:44 PM | #2 |
Endangered Dragon
Join Date: Jan 2002
Posts: 96,529
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1 st. Batch fries with new cross call f1, pls ask them what mean F
Last edited by KAO LUO; 03-04-2017 at 10:46 PM. |
07-04-2017, 11:48 PM | #3 |
Senior Dragon
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18-12-2017, 12:02 PM | #4 |
New Member
Join Date: Oct 2015
Posts: 17
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a lot of Thai breeder use F1.. mean that pure cichlid cross to male/ female flowerhorn.. the fry are called F1
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20-12-2017, 02:26 PM | #5 |
Dragon
Join Date: Aug 2006
Posts: 1,590
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F1 mean Ferrari, Mercedes, Red Bull
Seems like the claims to be F1 is of a higher quality. |
03-01-2018, 01:06 PM | #6 | |
Prof SK Ong
Join Date: Jan 2009
Posts: 10,641
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Quote:
F 0.5 is by uneducated breeder
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03-01-2018, 01:08 PM | #7 |
Prof SK Ong
Join Date: Jan 2009
Posts: 10,641
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Mendelian genetics term
https://en.m.wikipedia.org/wiki/F1_hybrid
An F1 hybrid (or filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types.[1] F1 hybrids are used in genetics, and in selective breeding, where it may appear as F1 crossbreed. The term is sometimes written with a subscript, as F1 hybrid.[2][3] Subsequent generations are called F2, F3, etc. The offspring of distinctly different parental types produce a new, uniform phenotype with a combination of characteristics from the parents. In fish breeding, those parents frequently are two closely related fish species, while in plant and animal breeding the parents often are two inbred lines. Mules are F1 hybrids between horse and donkey. Today, certain domestic–wild hybrid breeds, such as the Bengal cat and the Savannah cat, are classified by their filial generation number. Gregor Mendel focused on patterns of inheritance and the genetic basis for variation. In his cross-pollination experiments involving two true-breeding, or homozygous, parents, Mendel found that the resulting F1 generation were heterozygous and consistent. The offspring showed a combination of the phenotypes from each parent that were genetically dominant. Mendel’s discoveries involving the F1 and F2 generations laid the foundation for modern genetics.
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03-01-2018, 01:11 PM | #8 |
Prof SK Ong
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15-01-2018, 02:59 PM | #9 |
Senior Dragon
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