Due to offline circumstances, I sadly haven't been able to keep up with this guide. Fortunately, the amazing @Straif has created a new, updated guide here. Thank to everyone who has helped me with this guide - I know it's in great hands now.
Go HERE for the updated guide!
The original Breeding Rarity Findings thread by JessDwarf is wonderful, showing the possibilities of getting a certain gene or breed out of any particular combo. Unfortunately, the thread has sadly been abandoned (as JessDwarf doesn't appear to play anymore). I put together an updated guide here.
Instead of copying the data from the original thread, I did entirely new tests, using the Scrying Workshop's Forsee Progeny page (previous tests were with the breeding interface). I will, however, be copying the formatting and wording, as it's clear, easy to understand, and will make it easier to transition. This should be considered a continuation of the original post, not a replacement. All credit goes to JessDwarf. If they ever come back, I will happily hand over any of my data and let them continue their thread.
The information collected is on the frequency of gene and breed inheritance through each possible pairing and is presented in the format below:
Gene/breed #1 vs gene/breed #2: Number / Number – Percentage Gene/Breed
This is read as gene/breed #1 was tested against gene/breed #2, resulting in gene/breed #1 total occurrences / and gene/breed #2 total occurrences – meaning when breeding these two genes/breeds together, you have a percentage chance of getting one of the gene/breed, listing the rarer of the two tested genes or breeds.
Remember that depending on the total amount of trials for each experiment there is still an amount of experimental variance to the posted percentage, meaning that near-equal chances reported here are likely actually equal. Genes we can assume by this data to be on the same rarity tier include: Clown/Speckle/Tiger and Daub/Current/Eye Spots/Freckle/Stripes, and our collected Basic, Crystal, Iridescent, Shimmer, Ripple, Bar, and Seraph vs Treasure Gene totals use that rarity similarity to gain a better sense of the actual chance of inheritance when bred with any of these equal-rarity treasure genes.
Breeds and genes appear to operate on a tier system - the higher the tier, the less likely it will appear when bred against a lower tier. Breeds/genes on the same tier will have an equal chance to appear, and all breeds/genes on the same tier appear to have the same percentage chances against other tiers. (That is, a second tier clown gene has the same chance against a ripple gene as a stripes gene would have against a seraph gene.) The two following charts show this tier system, to the best of my knowledge:


For the second chart, the number on the left in a cell is the chance of getting the tier on the left, while the number on the right is the chance of getting the tier on the top.
So if you want to compare stripes to seraph, you'd look up common on the left and uncommon on the top, and see you have a 75% chance of common (stripes) and a 25% chance of uncommon (seraph).
Glimmer, a tertiary gene, is out! It's a gem gene, and it's Rare, just like all the other gem genes. Thank you so, so much to everyone that submitted their tests - real life is kicking me in the teeth right now, and I just don't have time to do my own tests. I'll update this further when I do have time. The following tests are from obscuresoul, Before, Straif, and Kanagosa.
Basic vs Glimmer: 398/2 - 1% Glimmer
Underbelly vs Glimmer: 196/4 - 2% Glimmer
Crackle vs Glimmer: 391/9 - 2% Glimmer
Okapi vs Glimmer: 297/3 - 1% Glimmer
Smoke vs Glimmer: 289/11 - 4% Glimmer
Gembond vs Glimmer: 292/8 - 3% Glimmer
Spines vs Glimmer: 292/8 - 3% Glimmer
Circuit vs Glimmer: 144/156 - 48% Circuit
Below are the individual results.
Basic (Plentiful)
Clown (Common)
Speckle (Common)
Tiger (Common)
Bar (Uncommon)
Ripple (Uncommon)
Vipera (Uncommon)
Crystal (Rare)
Iridescent (Rare)
Genes - Secondary
Basic (Plentiful)
Current (Common)
Daub (Common)
Eye Spots (Common)
Freckle (Common)
Stripes (Common)
Hypnotic (Uncommon)
Seraph (Uncommon)
Facet (Rare)
Shimmer (Rare)
Genes - Tertiary
Basic (Plentiful)
Underbelly (Common)
Crackle (Uncommon)
Okapi (Uncommon)
Smoke (Uncommon)
Gembond (Limited)
Spines (Limited)
Circuit (Rare)
Gene Rarity Types:
Plentiful: Basic
Common: Clown, Speckle, Tiger, Current, Daub, Eye Spots, Freckle, Stripes, Underbelly
Uncommon: Bar, Ripple, Vipera, Hypnotic, Seraph, Crackle, Okapi, Smoke
Limited: Gembond, Spines
Rare: Crystal, Iridescent, Facet, Shimmer, Circuit, Glimmer
Breeds
Plentiful
Common
Uncommon
Limited
Breed Rarity Types:
Plentiful: Fae, Guardian, Mirror, Tundra – 15 day cooldown
Common: Pearlcatcher, Ridgeback, Snapper, Spiral – 20 day cooldown
Uncommon: Skydancer – 25 day cooldown
Limited: Imperial, Nocturne – 30 day cooldown
Rare: Coatl, Wildclaw – 35 day cooldown
Thank you to all the contributors of the original thread - JessDwarf, Myracuulous, Antagonist, Morigale, heist, Fayd, lightningnymph, Monk, atroposhears, Elviril, Scyllarus, Niao, Naien, Mudkip, Boonys, bardicartist, Fincher, Dawnshadow, Synthy, cyphercat, Solar, PeaceColby, welosttheribs, DAGRON, JessDwarf, Kaishun, Tyeth, TheFuzz, Koushudai, tyloncorp, Dimidiata, Silvain, Sedakari, Traise, Thorachu, raelet, Sparrowlicious, Culex, famousfolly, miirshroom, Ryuukishin, Cluttermouse, allthingsnice, Toxxynne, Jalorda, theAbby, OverTheWolf, SlainCane, Seamelle, AdeleneDawner, Jayminae, shampug, Jamethyst, Corrina, Before, SFFCorgi, TheAtomicBon, Nayafen, Kaytara, Maki, IrisAya, secretstars, & Mignonne.
And thanks to all the contributors of the current thread - Jamethyst, ltstarbuck, Before, blaireau, Straif, Toska, Cassolotl, Rattlecat, obscuresoul, Kanagosa, & Sylvandyr.
Go HERE for the updated guide!
The original Breeding Rarity Findings thread by JessDwarf is wonderful, showing the possibilities of getting a certain gene or breed out of any particular combo. Unfortunately, the thread has sadly been abandoned (as JessDwarf doesn't appear to play anymore). I put together an updated guide here.
Instead of copying the data from the original thread, I did entirely new tests, using the Scrying Workshop's Forsee Progeny page (previous tests were with the breeding interface). I will, however, be copying the formatting and wording, as it's clear, easy to understand, and will make it easier to transition. This should be considered a continuation of the original post, not a replacement. All credit goes to JessDwarf. If they ever come back, I will happily hand over any of my data and let them continue their thread.
The information collected is on the frequency of gene and breed inheritance through each possible pairing and is presented in the format below:
Gene/breed #1 vs gene/breed #2: Number / Number – Percentage Gene/Breed
This is read as gene/breed #1 was tested against gene/breed #2, resulting in gene/breed #1 total occurrences / and gene/breed #2 total occurrences – meaning when breeding these two genes/breeds together, you have a percentage chance of getting one of the gene/breed, listing the rarer of the two tested genes or breeds.
Remember that depending on the total amount of trials for each experiment there is still an amount of experimental variance to the posted percentage, meaning that near-equal chances reported here are likely actually equal. Genes we can assume by this data to be on the same rarity tier include: Clown/Speckle/Tiger and Daub/Current/Eye Spots/Freckle/Stripes, and our collected Basic, Crystal, Iridescent, Shimmer, Ripple, Bar, and Seraph vs Treasure Gene totals use that rarity similarity to gain a better sense of the actual chance of inheritance when bred with any of these equal-rarity treasure genes.
Breeds and genes appear to operate on a tier system - the higher the tier, the less likely it will appear when bred against a lower tier. Breeds/genes on the same tier will have an equal chance to appear, and all breeds/genes on the same tier appear to have the same percentage chances against other tiers. (That is, a second tier clown gene has the same chance against a ripple gene as a stripes gene would have against a seraph gene.) The two following charts show this tier system, to the best of my knowledge:


For the second chart, the number on the left in a cell is the chance of getting the tier on the left, while the number on the right is the chance of getting the tier on the top.
So if you want to compare stripes to seraph, you'd look up common on the left and uncommon on the top, and see you have a 75% chance of common (stripes) and a 25% chance of uncommon (seraph).
Glimmer, a tertiary gene, is out! It's a gem gene, and it's Rare, just like all the other gem genes. Thank you so, so much to everyone that submitted their tests - real life is kicking me in the teeth right now, and I just don't have time to do my own tests. I'll update this further when I do have time. The following tests are from obscuresoul, Before, Straif, and Kanagosa.
Basic vs Glimmer: 398/2 - 1% Glimmer
Underbelly vs Glimmer: 196/4 - 2% Glimmer
Crackle vs Glimmer: 391/9 - 2% Glimmer
Okapi vs Glimmer: 297/3 - 1% Glimmer
Smoke vs Glimmer: 289/11 - 4% Glimmer
Gembond vs Glimmer: 292/8 - 3% Glimmer
Spines vs Glimmer: 292/8 - 3% Glimmer
Circuit vs Glimmer: 144/156 - 48% Circuit
Below are the individual results.
Results
Genes - PrimaryBasic (Plentiful)
vs Clown: 696/304 - 30% Clown
vs Speckle: 703/297 - 30% Speckle
vs Tiger: 704/296 - 30% Tiger
vs All Treasure Primary Genes (except Bar & Ripple): 2103/897 - 30% All Treasure Genes
vs Bar: 839/161 - 16% Bar
vs Ripple: 840/160 - 16% Ripple
vs Vipera: 429/71 - 14% Vipera
vs Bar & Ripple: 1679/321 - 16% Bar & Ripple
vs Crystal: 992/8 - 1% Crystal
vs Iridescent: 992/8 - 1% Iridescent
vs Speckle: 703/297 - 30% Speckle
vs Tiger: 704/296 - 30% Tiger
vs All Treasure Primary Genes (except Bar & Ripple): 2103/897 - 30% All Treasure Genes
vs Bar: 839/161 - 16% Bar
vs Ripple: 840/160 - 16% Ripple
vs Vipera: 429/71 - 14% Vipera
vs Bar & Ripple: 1679/321 - 16% Bar & Ripple
vs Crystal: 992/8 - 1% Crystal
vs Iridescent: 992/8 - 1% Iridescent
Clown (Common)
vs Speckle: 495/505 - 50% Clown
vs Tiger: 461/539 - 46% Clown
vs Bar: 817/283 - 26% Bar
vs Ripple: 761/239 - 24% Ripple
vs Vipera: 376/124 - 25% Vipera
vs Crystal: 993/7 - 1% Crystal
vs Iridescent: 991/9 - 1% Iridescent
vs Tiger: 461/539 - 46% Clown
vs Bar: 817/283 - 26% Bar
vs Ripple: 761/239 - 24% Ripple
vs Vipera: 376/124 - 25% Vipera
vs Crystal: 993/7 - 1% Crystal
vs Iridescent: 991/9 - 1% Iridescent
Speckle (Common)
vs Tiger: 485/515 - 49% Speckle
vs Bar: 809/291 - 26% Bar
vs Ripple: 763/237 - 24% Ripple
vs Vipera: 385/115 - 23% Vipera
vs Crystal: 992/8 - 1% Crystal
vs Iridescent: 990/10 - 1% Iridescent
vs Bar: 809/291 - 26% Bar
vs Ripple: 763/237 - 24% Ripple
vs Vipera: 385/115 - 23% Vipera
vs Crystal: 992/8 - 1% Crystal
vs Iridescent: 990/10 - 1% Iridescent
Tiger (Common)
vs Bar: 736/264 - 26% Bar
vs Ripple: 754/246 - 25% Ripple
vs Vipera: 385/115 - 23% Vipera
vs Crystal: 994/6 - 1% Crystal
vs Iridescent: 987/13 - 1% Iridescent
vs Ripple: 754/246 - 25% Ripple
vs Vipera: 385/115 - 23% Vipera
vs Crystal: 994/6 - 1% Crystal
vs Iridescent: 987/13 - 1% Iridescent
Bar (Uncommon)
vs All Other Treasure Primary Genes (except Ripple): 770/2230 - 26% Bar
vs Ripple: 596/604 - 50% Bar
vs Vipera: 256/244 - 49% Vipera
vs Crystal: 980/20 - 2% Crystal
vs Iridescent: 978/22 - 2% Iridescent
vs Ripple: 596/604 - 50% Bar
vs Vipera: 256/244 - 49% Vipera
vs Crystal: 980/20 - 2% Crystal
vs Iridescent: 978/22 - 2% Iridescent
Ripple (Uncommon)
vs Vipera: 236/264 - 47% Ripple
vs All Other Treasure Primary Genes (except Bar): 722/2278 - 24% Ripple
vs Crystal: 985/15 - 2% Crystal
vs Iridescent: 980/20 - 2% Iridescent
vs All Other Treasure Primary Genes (except Bar): 722/2278 - 24% Ripple
vs Crystal: 985/15 - 2% Crystal
vs Iridescent: 980/20 - 2% Iridescent
Vipera (Uncommon)
vs Crystal: 490/10 - 2% Crystal
vs Iridescent: 490/10 - 2% Iridescent
vs Iridescent: 490/10 - 2% Iridescent
Crystal (Rare)
vs Iridescent: 489/511 - 49% Crystal
vs All Treasure Primary Genes (except Bar and Ripple): 21/2979 - 1% Crystal
vs Bar & Ripple: 35/1965 - 2% Crystal
vs All Treasure Primary Genes (except Bar and Ripple): 21/2979 - 1% Crystal
vs Bar & Ripple: 35/1965 - 2% Crystal
Iridescent (Rare)
vs All Treasure Primary Genes (except Bar and Ripple): 32/2968 - 1% Iridescent
vs Bar & Ripple: 42/1958 - 2% Iridescent
vs Bar & Ripple: 42/1958 - 2% Iridescent
Genes - Secondary
Basic (Plentiful)
vs Current: 691/309 - 31% Current
vs Daub: 680/320 - 32% Daub
vs Eye Spots: 688/312 - 31% Eye Spots
vs Freckle: 696/304 - 30% Freckle
vs Stripes: 657/343 - 34% Stripes
vs All Treasure Secondary Genes (except Seraph): 3075/1425 - 32% All Treasure Genes
vs Hypnotic: 419/81 - 16% Hypnotic
vs Seraph: 859/141 - 14% Seraph
vs Facet: 1190/10 - 1% Facet
vs Shimmer: 985/15 - 2% Shimmer
vs Daub: 680/320 - 32% Daub
vs Eye Spots: 688/312 - 31% Eye Spots
vs Freckle: 696/304 - 30% Freckle
vs Stripes: 657/343 - 34% Stripes
vs All Treasure Secondary Genes (except Seraph): 3075/1425 - 32% All Treasure Genes
vs Hypnotic: 419/81 - 16% Hypnotic
vs Seraph: 859/141 - 14% Seraph
vs Facet: 1190/10 - 1% Facet
vs Shimmer: 985/15 - 2% Shimmer
Current (Common)
vs Daub: 549/551 - 50% Current
vs Eye Spots: 477/523 - 48% Current
vs Freckle: 508/492 - 49% Freckle
vs Stripes: 477/523 - 48% Current
vs Hypnotic: 367/133 - 27% Hypnotic
vs Seraph: 745/255 - 26% Seraph
vs Facet: 1190/10 - 1% Facet
vs Shimmer: 983/17 - 2% Shimmer
vs Eye Spots: 477/523 - 48% Current
vs Freckle: 508/492 - 49% Freckle
vs Stripes: 477/523 - 48% Current
vs Hypnotic: 367/133 - 27% Hypnotic
vs Seraph: 745/255 - 26% Seraph
vs Facet: 1190/10 - 1% Facet
vs Shimmer: 983/17 - 2% Shimmer
Daub (Common)
vs Eye Spots: 547/553 - 50% Daub
vs Freckle: 565/535 - 49% Freckle
vs Stripes: 563/537 - 49% Stripes
vs Hypnotic: 373/127 - 25% Hypnotic
vs Seraph: 794/306 - 28% Seraph
vs Facet: 1189/11 - 1% Facet
vs Shimmer: 992/8 - 1% Shimmer
vs Freckle: 565/535 - 49% Freckle
vs Stripes: 563/537 - 49% Stripes
vs Hypnotic: 373/127 - 25% Hypnotic
vs Seraph: 794/306 - 28% Seraph
vs Facet: 1189/11 - 1% Facet
vs Shimmer: 992/8 - 1% Shimmer
Eye Spots (Common)
vs Freckle: 491/509 - 49% Eye Spots
vs Stripes: 494/506 - 49% Eye Spots
vs Hypnotic: 360/140 - 28% Hypnotic
vs Seraph: 742/258 - 26% Seraph
vs Facet: 1189/11 - 1% Facet
vs Shimmer: 991/9 - 1% Shimmer
vs Stripes: 494/506 - 49% Eye Spots
vs Hypnotic: 360/140 - 28% Hypnotic
vs Seraph: 742/258 - 26% Seraph
vs Facet: 1189/11 - 1% Facet
vs Shimmer: 991/9 - 1% Shimmer
Freckle (Common)
vs Stripes: 520/480 - 48% Stripes
vs Hypnotic: 397/103 - 21% Hypnotic
vs Seraph: 749/251 - 25% Seraph
vs Facet: 1190/10 - 1% Facet
vs Shimmer: 991/9 - 1% Shimmer
vs Hypnotic: 397/103 - 21% Hypnotic
vs Seraph: 749/251 - 25% Seraph
vs Facet: 1190/10 - 1% Facet
vs Shimmer: 991/9 - 1% Shimmer
Stripes (Common)
vs Hypnotic: 392/108 - 22% Hypnotic
vs Seraph: 726/274 - 27% Seraph
vs Facet: 1183/17 - 1% Facet
vs Shimmer: 988/12 - 1% Shimmer
vs Seraph: 726/274 - 27% Seraph
vs Facet: 1183/17 - 1% Facet
vs Shimmer: 988/12 - 1% Shimmer
Hypnotic (Uncommon)
vs Seraph: 255/245 - 49%
vs Facet: 491/9 - 2% Facet
vs Shimmer: 494/6 - 1% Shimmer
vs Facet: 491/9 - 2% Facet
vs Shimmer: 494/6 - 1% Shimmer
Seraph (Uncommon)
vs All Other Treasure Secondary Genes: 1321/3679 - 26% Seraph
vs Facet: 1187/13 - 1% Facet
vs Shimmer: 979/21 - 2% Shimmer
vs Facet: 1187/13 - 1% Facet
vs Shimmer: 979/21 - 2% Shimmer
Facet (Rare)
vs Shimmer: 596/604 - 50% Facet
vs All Treasure Secondary Genes (except Seraph): 59/5941 - 1% Facet
vs All Treasure Secondary Genes (except Seraph): 59/5941 - 1% Facet
Shimmer (Rare)
vs All Treasure Secondary Genes (except Seraph): 55/4945 - 1% Shimmer
Genes - Tertiary
Basic (Plentiful)
vs Underbelly: 698/302 - 30% Underbelly
vs Crackle: 846/154 - 15% Crackle
vs Okapi: 1002/198 - 17% Okapi
vs Smoke: 927/173 - 16% Smoke
vs Gembond: 942/58 - 6% Gembond
vs Spines: 1046/54 - 5% Spines
vs Circuit: 983/17 - 2% Circuit
vs Crackle: 846/154 - 15% Crackle
vs Okapi: 1002/198 - 17% Okapi
vs Smoke: 927/173 - 16% Smoke
vs Gembond: 942/58 - 6% Gembond
vs Spines: 1046/54 - 5% Spines
vs Circuit: 983/17 - 2% Circuit
Underbelly (Common)
vs Crackle: 752/248 - 25% Crackle
vs Okapi: 757/243 - 24% Okapi
vs Smoke: 800/300 - 27% Smoke
vs Gembond: 908/92 - 9% Gembond
vs Spines: 982/118 - 11% Spines
vs Circuit: 989/11 - 1% Circuit
vs Okapi: 757/243 - 24% Okapi
vs Smoke: 800/300 - 27% Smoke
vs Gembond: 908/92 - 9% Gembond
vs Spines: 982/118 - 11% Spines
vs Circuit: 989/11 - 1% Circuit
Crackle (Uncommon)
vs Okapi: 604/596 - 50% Okapi
vs Smoke: 566/534 - 49% Smoke
vs Gembond: 860/140 - 14% Gembond
vs Spines: 855/145 - 15% Spines
vs Circuit: 979/21 - 2% Circuit
vs Smoke: 566/534 - 49% Smoke
vs Gembond: 860/140 - 14% Gembond
vs Spines: 855/145 - 15% Spines
vs Circuit: 979/21 - 2% Circuit
Okapi (Uncommon)
vs Smoke: 561/539 - 49% Smoke
vs Gembond: 1021/179 - 15% Gembond
vs Spines: 919/181 - 16% Spines
vs Circuit: 1186/14 - 1% Circuit
vs Gembond: 1021/179 - 15% Gembond
vs Spines: 919/181 - 16% Spines
vs Circuit: 1186/14 - 1% Circuit
Smoke (Uncommon)
vs Gembond: 936/164 - 15% Gembond
vs Spines: 931/169 - 15% Spines
vs Circuit: 1084/16 - 1% Circuit
vs Spines: 931/169 - 15% Spines
vs Circuit: 1084/16 - 1% Circuit
Gembond (Limited)
vs Spines: 549/551 - 50% Gembond
vs Circuit: 971/29 - 3% Circuit
vs Circuit: 971/29 - 3% Circuit
Spines (Limited)
vs Circuit: 1086/14 - 1% Circuit
Circuit (Rare)
n/a
Gene Rarity Types:
Plentiful: Basic
Common: Clown, Speckle, Tiger, Current, Daub, Eye Spots, Freckle, Stripes, Underbelly
Uncommon: Bar, Ripple, Vipera, Hypnotic, Seraph, Crackle, Okapi, Smoke
Limited: Gembond, Spines
Rare: Crystal, Iridescent, Facet, Shimmer, Circuit, Glimmer
Breeds
Plentiful
vs Common: 705/295 - 30% Common
vs Uncommon: 854/146 - 15% Uncommon
vs Limited: 970/30 - 3% Limited
vs Rare: 1489/11 - 1% Rare
vs Uncommon: 854/146 - 15% Uncommon
vs Limited: 970/30 - 3% Limited
vs Rare: 1489/11 - 1% Rare
Common
vs Uncommon: 760/240 - 24% Uncommon
vs Limited: 907/93 - 9% Limited
vs Rare: 1973/27 - 1% Rare
vs Limited: 907/93 - 9% Limited
vs Rare: 1973/27 - 1% Rare
Uncommon
vs Limited: 1128/172 - 13% Limited
vs Rare: 977/23 - 2% Rare
vs Rare: 977/23 - 2% Rare
Limited
vs Rare: 1448/52 - 3% Rare
Breed Rarity Types:
Plentiful: Fae, Guardian, Mirror, Tundra – 15 day cooldown
Common: Pearlcatcher, Ridgeback, Snapper, Spiral – 20 day cooldown
Uncommon: Skydancer – 25 day cooldown
Limited: Imperial, Nocturne – 30 day cooldown
Rare: Coatl, Wildclaw – 35 day cooldown
Thank you to all the contributors of the original thread - JessDwarf, Myracuulous, Antagonist, Morigale, heist, Fayd, lightningnymph, Monk, atroposhears, Elviril, Scyllarus, Niao, Naien, Mudkip, Boonys, bardicartist, Fincher, Dawnshadow, Synthy, cyphercat, Solar, PeaceColby, welosttheribs, DAGRON, JessDwarf, Kaishun, Tyeth, TheFuzz, Koushudai, tyloncorp, Dimidiata, Silvain, Sedakari, Traise, Thorachu, raelet, Sparrowlicious, Culex, famousfolly, miirshroom, Ryuukishin, Cluttermouse, allthingsnice, Toxxynne, Jalorda, theAbby, OverTheWolf, SlainCane, Seamelle, AdeleneDawner, Jayminae, shampug, Jamethyst, Corrina, Before, SFFCorgi, TheAtomicBon, Nayafen, Kaytara, Maki, IrisAya, secretstars, & Mignonne.
And thanks to all the contributors of the current thread - Jamethyst, ltstarbuck, Before, blaireau, Straif, Toska, Cassolotl, Rattlecat, obscuresoul, Kanagosa, & Sylvandyr.