Arabische Pferde IN THE FOCUS 1/2022 (Vol. 29) - public

FORENSIC QUESTION 2
FORENSIC QUESTION 1 - DOKTRYNER
As mentioned before, this technique also
allows us to detect errors – or at least “questionmarks”
– in studbook records many generations
back, two of which we will explain
in detail. The first one concerns the stallions
Doktryner or his son Gerwazy. Doktryners
parentage officially is given as “by Miecznik
out of Blaga”, and horses after Doktryner
– through his son Gerwazy – belong to the
haplotype “Ta-b”. But the dataset also included
samples of descendants of another
Miecznik-son Aquinor, and they belong to
the haplotype “Ao-aA1a*”, i.e. distinctively
different! Also, another line through Fetysz
(the sire of Miecznik) in Trakehner breeding
showed “Ao-aA1a4”. So, the sire line of Fetysz
through Miecznik to Aquinor is identical
with the sire line of Fetysz in Trakehner
breeding, but different to the line through
Miecznik to Gerwazy. A recent inaccurate
paternity assignment of either Doktryner or
Gerwazy is the most probable explanation.
The next step was to look at Doktryners provenance:
He was born in 1950 at Klemensow,
Poland. Assuming that Miecznik is not
his true sire, it was looked at the stallions
that were available in 1949 in Klemensow,
the year of covering Doktryners dam Blaga.
These were:
The list of stallions shows, that there was
only one stallion at stud with the haplotype
“Ta-b”, which is Amurath Sahib.
To double-check when the wrong paternity
assignment occurred, the same was done for
Gerwazy (Doktryner / Gwara) born in 1955 at
Michalow Stud. The stallions active in 1954
(year of covering Gwara) were:
Although the haplotype of Rozmaryn is
unknown, he can be excluded as sire of the
grey Gerwazy, because Rozmaryn is chestnut
and Gwara bay, which cannot result in a
grey offspring. Therefore the haplotypes (in
combination with colour genetics) provide
an indication that Amurath Sahib, active at
Klemensow Stud at the time of covering, was
the biological father of Doktryner. And actually
looking at photographs of Doktryner and
Amurath Sahib makes this even more probable.
FORENSIC QUESTION 2 - SIGLAVY
A different “questionmark” in the pedigrees
concerns the “Siglavys” of various breeds.
So far, pedigree records suggest that Siglavy
db ‘Schwarzenberg’, grey, born 1810, was the
founder of the sire lines in Shagya-Arabians,
Lipizzans as well as Trakehners, while Siglavy
IV db, bay, born 1819, was only active in Shagya-Arabian
breeding, but his line became
extinct already in the 19th century (3).
However, Dr. Wallner and her team detected
two distinct Arabian haplotypes in horses
tracing back to the imported Arabian stallion
Siglavy ‘Schwarzenberg’, 1810 (quote): “The
Lipizzaner and Kladruber lines (after Siglavy
Slavina III, 1893) carried ’Ao-aA1a2’ and the
subline-haplotype ’Ao-aA1a2a’, whereas Shagya
Arabians and Trakehner (after 21 Siglavy
II-2, 1909) grouped distantly into haplotype
’Ao-aA1b‘. Both haplotypes were not detected
in any lines other than the Siglavys. Hence,
the findings indicate that the Siglavy sire
lines in Lipizzaner and Shagya Arabians were
founded by paternally unrelated horses.”
Confusion may have arisen because a second
Siglavy line, founded by the Arabian stallion
Siglavy IV db, 1819 (imp. 1825), was active
in parallel (from 1825 to 1868) to the Siglavy
line after Siglavy db ‘Schwarzenberg’, 1810
in the studs of the Habsburg Monarchy, and
due to the naming system in these studs, the
same name (with differing Roman numbers)
was given to the male offspring of both sire
lines.
It is interesting to note that these different
sire lines in Lipizzaner and Shagya Arabians
also explain the discrepancy pointed out in
our article about the Siglavys (2) and the description
of the painting by Albrecht Adam,
who shows a bay Siglavy as founder stallion
of the Lipizzan breed, which then should be
Siglavy IV.
For the first time, the technique of fine-scaled
Y-chromosmal haplotype analysis was
applied in Arabians, and the findings – especially
when put into historical context – are
convincing. With this technique, a powerful
tool has been developed that provides information
about the origin, purity, genealogies,
distribution and influence of Arabian stallions
and their sire lines.
Gudrun Waiditschka
Sources:
(1) Remer, V.; Bozlak, E.; Felkel, S.; Radovic,
L.; Rigler, D.; Grilz-Seger, G.; Stefaniuk-Szmukier,
M.; Bugno-Poniewierska, M.;
Brooks, S.; Miller, D.C.; et al.: “Y-Chromosomal
Insights into Breeding History and Sire
Line Genealogies of Arabian Horses”. Genes
2022, 13, 229. https:// doi.org/10.3390/genes13020229
(2) Waiditschka, G.: “Purity form a genetic
view point”, AP 1/2021, p. 29ff
(3) Furrer, B.: “The two Siglavys with world
influence”, AP 1/2019, p. 54ff.
Breeding
THE LIPIZZANER AND KLAD-
RUBER SIRE LINES HAVE A
DIFFERENT HAPLOTYPE AND
THEREFORE DIFFERENT FOUND-
ERS COMPARED TO THE SHAG-
YAS AND TRAKEHNERS.
Pedigree von Kuhailan Afas db im arabischen
Original
1/2022 - www.in-the-focus.com
53
Übersetzung des Pedigrees von Kuhailan
Afas db.