agReg-SNPdb






Georg-August-Universität Göttingen
CiBreed

Overview for Gallus gallus (Chicken)

The chicken (Gallus gallus) primarily originates from the red junglefowl, which was first domesticated in Asia. The chicken is of great importance in agriculture especially in the area of meat and egg production. It serves as a vertebrate model organism for embryology and development, study of viruses, and cancer. The genome is estimated to be around 900 Mb and consists of 32 autosomes and two sex chromosomes (Z and W). Like in other avian species, chicken chromosomes have a great variation in size, ranging from 5 to 200 Mb. In birds, the female is the heterogametic sex with the Z and W chromosomes, while the male birds are homozygous (ZZ). In agReg-SNPdb, we store 16,659 genes and 20,917,836 SNPs.

Ensembl Assembly (GRCg6a)
Chicken

Statistics

(Last updated on 21.05.2021)

Number of chromosomes 35
Number of genes 16,659
Number of SNPs 20,917,836

Click on a chromosome to download the data stored in agReg-SNPdb for the complete chromosome

Chromosome Number of SNPs Number of Genes
1 4,004,942 2245
2 3,032,555 1460
3 2,286,474 1233
4 1,927,119 1159
5 1,263,288 965
6 856,896 546
7 803,183 515
8 609,591 522
9 567,636 450
10 454,767 417
11 402,306 369
12 477,827 340
13 436,195 383
14 367,286 419
15 276,281 397
16 15,271 115
17 260,045 297
18 271,627 322
19 241,754 330
20 334,808 332
21 173,399 256
22 69,622 195
23 155,298 258
24 171,276 172
25 51,662 307
26 152,353 270
27 135,133 358
28 121,510 290
30 15 114
31 7445 263
32 260 68
33 21609 360
W 15,978 103
Z 952,363 816
MT 62 13



Distribution of rSNPs relative to the TSS

SNP distance to TSS chicken