INVESTIGADORES
ROGBERG MUÑOZ Andres
congresos y reuniones científicas
Título:
Evaluation of STR set for bovine traceability in the context of Chinese Beef Imports and Argentine-Chinese beef trade
Autor/es:
ROGBERG MUÑOZ, A; WEI, S; RIPOLI, MV; GUO, BL; GOSZCZYNSKI, DE; CARINO, MH; CASTILLO, NS; MELUCCI, LM; VILLARREAL, EL; LIRÓN, JP; CRESPI, JA; GIOVAMBATTISTA, G
Lugar:
Cairns
Reunión:
Conferencia; 33rd Conference of the International Society for Animal Genetics; 2012
Institución organizadora:
International Society for Animal Genetics
Resumen:
Genetic traceability allows individual, breed or species identification.
Furthermore, it has a proved use to detect frauds and, to protect and valorise
local productions. The objective of the present work was to evaluate 22 STRs in
357 animals corresponding to four Chinese populations, and nine Bos taurus and
two B. indicus breeds raised in Argentina, and commonly raised in the whole
world. PCA showed that the first PC accounted for 22% of the total variance and
differentiate Zebuine from Taurine breeds, and admixtured were intermediate
located. The second PC (16% of the variance) distinguished the European from
Asiatic Taurine breeds. FST showed significant differences across the
populations (FST = 0.12). AMOVA differences among and within populations
account for 11.42% and 88.58% of genetic variance. When breeds were grouped
according to their origin, AMOVA showed differences among groups of 2.16%,
while among populations within groups was 9.82%. Variance within individuals
explained 88.02%. For K = 13 Structure clustered all Argentine breeds
independently, but Brangus assigned with Angus. Part of Chinese populations
shared a common cluster, while the other was wrong allocated as Limousin. The
results evidence that it would be possible to differentiate many of the most
commonly raised beef breeds from those breeds typically produced in China.