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Two maternal
origins of Chinese domestic light-body type goose
H. F. Li*, W. Q. Zhu, K. W. Chen, W.
T. Song, J. T. Shu, W. Han and W. J. Xu
Institute of Poultry Science, Chinese Academy of
Agricultural Science, Jiangsu Provincial Key Laboratory of
Poultry Genetics and Breeding, Yangzhou, 225003.
*Corresponding author. E-mail:
lhfxf_002@yahoo.com.cn. Tel: +86-514-87207327. Fax:
+86-514-87207327.
Abbreviations: T,
Thymine; G, guanine; A, adenine; C,
cytosine; Hd, haplotype diversity; Pi,
nucleotide diversity; RFLP,
restriction fragment length polymorphism;
mtDNA,
mitochondrial deoxyribonucleic acid;
PCR,
polymerase chain reaction; Nm, product of migrants and deme size;
CL,
Changle goose;
YouJ,
Youjiang goose;
YJ,
Yangjiang goose;
WZ,
Wuzong goose;
TH,
Taihu goose;
LH,
Lianhua goose;
YL,
Yili
goose;
HY,
Huoyan goose;
MB,
Minbei white goose;
YK,
Yongkang gray goose;
LX,
Linxian goose;
BZ,
Baizi goose;
Zi,
Zi goose.
Accepted 16 February, 2010 |
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China is particularly rich in goose genetic resources. The
systemic study of genetic diversity and origin of Chinese
indigenous geese will provide important scientific basis for
the conservation, utilization of resources and human
history. The 521 bp control region (D-loop) of mitochondrial
DNA from 13 light-body type breeds was sequenced. The
results showed that in the D-loop region of the 13 gray
goose breeds, the content of T, C, A and G nucleotides was
23.8, 29.0, 32.2 and 15.1%, respectively. The average
haplotype diversity (Hd) and nucleotide diversity (Pi) of
domestic geese were 0.2153 and 0.00046, respectively. The 13
light-body type breeds had bigger nucleotide variance value
among populations than the value within populations and all
the breeds did not exist population expansion. Shared
haplotype analysis and systemic systematic evolution
analysis revealed that Chinese light- body type domestic
goose owned two maternal origins. YL goose breed originated
from greylag goose (anser anser), and the other 12 light-
body type goose breeds originated from swan goose (anser
cygnoides).
Key words:
Domestic goose, mtDNA D-loop, systematic evolution. |
