Toll Fee by Topsider-Toll Booth 2nd dam of Tonalist

[Pan Zareta]

Took a look at the leading 24 in North America by earnings as of today. I see no need to exclude fillies just b/c they have more paths back to Buckpasser, so they're included. This is how Buckpasser's presence in pedigree breaks down:

20 have at least 1 cross of Buckpasser, none closer than 4th gen., none further back than 7th gen
5 have two non x-passing crosses
4 have one non x-passing cross
4 have two crosses, one non x-passing and one x-passing
3 have one x-passing cross
2 have three crosses, two non x-passing and one x-passing
1 has three crosses, one non x-passing and two x-passing
1 has two x-passing crosses

So, 11 of the current top 24 have Buckpasser in an x-passing position (4 exclusively in x-passing), and 9 of same have Buckpasser exclusively in one or more non x-passing positions. Interesting evidence in regard to his influence in North America but not supportive of the notion that it's x-dependent.

[stancaris]

Pan Zareta wrote: "There is no major association between the X and elite performance at the molecular level."

That's an opinion NOT FACT. You treat it as if it were a known fact that the X chromosome at best only plays a minor role in broodmare sire success and you continually cite the genomic evidence to support that conclusion.

Byron Rogers, your eminently reliable source, stated that there are variants on the X chromosome that relate to elite performance but when we rank them the variant on the X that reached statistical significance does not even rank in the top ten.

That statement by Mr. Rogers does not mean that the variant on the X chromosome that reached statistical significance degrades the X to only a minor role at best in broodmare sire success. All that statement means is that in his opinion 9 other variants are more important.

Your blanket statement that the X at best only plays a minor role in broodmare sire success is a glittering generality and you have NO PROOF of that.

[Georgerz]

i don't think that is acceptable to hijack this thread to pontificate ad nausea about Buckpasser in the x passing position, or for any other reason at all. It shows lack of respect and consideration to the originator of the thread.

[Keith]

Influential mares you see in a lot of pedigrees
1. Somethingroyal by Princequillo-Imperatrice by Caruso
2. Weekend Surprise by Secretariat-Lassie Dear by Buckpasser
3. Urban Sea by Miswaki-Allegretta by Lombard
4. Fairy Bridge by Bold Reason-Special by Forli
5. Special by Forli-Thong by Nantallah
6. Rough Shod II by Gold Bridge-Dalmary by Blandford
7. Boudoir II by Mahmoud-Kampala by Clarrissimus
8. Mumtaz Begum by Blenheim II-Mumtaz Mahal by The Tetrarch
9. Mumtaz Mahal by The Tetrarch-Lady Josephine by Sundridge
10. Canterbury Pilgrim by Tristan-Pilgrimage by The Palmer
11. Pocohontas by Glencoe-Marpessa by Muley
12. Almahmoud by Mahmoud-Arbitrator by Peace Chance
13. Selene by Chaucer-Serrenisma by Minoru
14. La Troienne by Teddy-Helen De Troie by Helicon
15. Flower Bowl by Alibhai-Flower Bed by Beau Pere
16. Plucky Liege by Spearmint-Concertina by St. Simon
17. Key Bridge by Princequillo-Blue Banner by War Admiral
18. Marguerite by Celt-Fairy Ray by Radium
19. Two Lea by Bull Lea-Two Bob by The Porter
20. Two Bob by The Porter-Blessings by Chicle
21. Shenanigans by Native Dancer-Bold Irish by Fighting Fox
22. Hasili by Kahyasi-Kerali by High Line
23. Natalma by Native Dancer-Almahmoud by Mahmoud
24. Cosmah by Cosmic Bomb-Almahmoud by Mahmoud
25. Banish Fear by Blue Larkspur-Herodiade by Over There
26. Sweet Briar by St Frusquin-Presentation by Orion
27. Iron Maiden by War Admiral-Betty Derr by Sir Gallahad III
28. Betty Derr by Sir Galahad III-Uncle's Lassie by Uncle
29. Uncle's Lassie by Uncle-Planutuss by Planudes
30. No Class by Nodouble-Classy Quillo by Outing Class
31. Classy N' Smart by Smarten-No Class by Nodouble
32. Iron Reward by Beau Pere-Iron Maiden by War Admiral
33. La France by Sir Gallahad III-Flambette by Durbar
34. Flambette by Durbar-La Flambee by Ajax
35. Banquet Bell by Polynesian-Dinner Horn by Pot Au Feu
36. Courtly Dee by Never Bend-Tulle by War Admiral
37. Lalun by Djeddah-Be Faithful by Bimelech
38. Bloodroot by Blue Larkspur-Knockany Bridge by Bridge of Earn
39. Tree of Knowledge by Sassafras-Sensibility by Hail to Reason
40. North of Eden by Northfields-Tree of Knowledge by Sassafras
41. Little Hut by Occupy-Savage Beauty by Challenger
42. Better Than Honour by Deputy Minister-Blush With Pride by Blushing Groom
43. Set Them Free by Stop The Music-Valseuse by Tyrant
44. Never Knock by Stage Door Johnny-Never Hula by Never Bend
45. Mining My Own by Smart Strike-Aspenelle by Vice Regent
46. Dear Birdie by Storm Bird- Hush Dear by Silent Screen
47. Track Medal by Khaled-Iron Reward by Beau Pere
48. Baby Zip by Relaunch-Thirty Zip by Tri Jet
49. Primal Force by Blushing Groom-Prime Prospect by Mr. Prospector
50. Toussaud by El Gran Senor-Image of Reality by In Reality
51. My Dear Girl by Rough N' Tumble-Iltis by War Relic
52. Aspididstra by Better Self-Tilly Rose by Bull Brier
53. Fall Aspen by Pretense-Change Water by Swaps
54. Six Crowns by Secretariat-Chris Evert by Swoon's Son
55. Miss Carmie by T.V. Lark-Twice Over by Ponder
56. Terlingua by Secretariat-Crimson Saint by Crimson Satan
57. Crimson Saint by Crimson Satan-Bolero Rose by Bolero
58. Relaxing by Buckpasser-Marking Time by To Market
59. Sweet Tooth by On-and-On-Plum Cake by Ponder

These are some influential mares in pedigrees that come to mind