Letters and numbers at the end of strain name

[Yesyes3000]

Hello I was wondering if someone could school me on what the letters and number I see sometimes at the end of a strains name represent ? For example ....Jack47 F1FV
Thank you for your time and info !!! I’m very grateful and appreciative

 

[Renfro]

Well F1 means filial 1 (first generation of off spring from parents)
F2 is the offspring from the F1's
a BX is a backcross

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[Moflow]

Possibly Fast Version

Green Poison F1 Fast Version®

Feminized and photoperiod-dependent version of our Green Poison® (SWS14) now featuring ultra-fast flowering. This is an F1 hybrid resulting from the cross between the elite clone of our appreciated Green Poison® and a selected 3rd Generation autoflowering genetic line of Green Poison Auto® (SWS30).

sweetseeds.es

 

[Renfro]

Possibly Fast Version

Green Poison F1 Fast Version®

Feminized and photoperiod-dependent version of our Green Poison® (SWS14) now featuring ultra-fast flowering. This is an F1 hybrid resulting from the cross between the elite clone of our appreciated Green Poison® and a selected 3rd Generation autoflowering genetic line of Green Poison Auto® (SWS30).

sweetseeds.es

That is correct.

https://www.autoflower.net/forums/threads/info-about-f1fvs-what-they-are-how-theyre-made.64905/?__cf_chl_jschl_tk__=b3c037175a8c820c1ac04b19ee7ec23836e36d23-1576095477-0-ASwe56oIqzz_HwnWl2hzHNaYbCP1A_m4ujcy9v0cwLrxP6pc4vB8ll2z-WX2pR9EbLOJe0VRBAxSuGB3Zeb0LGHByUpZzGc9JKtozecTWSyds3U6k3ujStTLe4Iq2QDdUoyK2IXVHTRycdSCCKjmyWZB4OV2yzLqsNLajnzLIvRZv6CzxA8SJD-3GL1tzAuR34GHNfbjSoir6rIJ02yWaNBzfmGSIR-ViydyalmDa5oW74EOMTrM9ivqg-phE8_7XskpxeLHZRwDd83TLCR-7tQbQ4c5B6Z2bEkt2aspdJqNQSmdc0yAKRd_zZ8btqJldGGvbffm7czMotL9HydcX87BkEqLHIcXt6ZFmxTkp2pa