Table 1 The base change sites and phenotypes of alleles of ALV receptors

ALV-A/K

Tva

Tva

-

-

Sensitive

Tva^r

Base mutation

C/G ^{168 mRNA}

Resistant

Tva^r2

Exon 1 insert 4 bp

²⁸⁴CTGC²⁸⁷

Resistant

Tva^r3

Intron 1 miss 10 bp

⁵⁰⁷ACCCCGCCCC⁵¹⁶

Reduce susceptibility

Tva^r4

Intron 1 miss 5 bp

⁵⁰⁷ACCCC⁵¹¹

Reduce susceptibility

Tva^r5

Intron 1 miss 10 bp

⁵⁰²CGCTCACCCC⁵¹¹

Reduce susceptibility

Tva^r6

Intron 1 miss 15 bp

⁵⁰²CGCTCACCCCGCCCC⁵¹⁶

Reduce susceptibility

ALV-B/D/E

Tvb

Tvb^s1

-

-

Sensitive to subgroups B/D/E

Tvb^s3

Base mutation

T/A ^{184 mRNA}

Sensitive to subgroups B/D

Tvb^r

Base mutation

C/T ^{172 mRNA}

Resistant

ALV-C

Tvc

Tvc

-

-

Sensitive

Tvc^r

Base mutation

C/A^{165 mRNA}

Resistant

ALV-J

NHE1

NHE1

-

-

Sensitive

NHE1^∆

Base mutation

W38

Resistant