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Genetics

The complete mitochondrial genome and molecular phylogeny of Lueyang black-bone chicken

, , , , &
Pages 618-623 | Received 11 Apr 2018, Accepted 10 Jul 2018, Published online: 26 Sep 2018
 

ABSTRACT

1. The objectives of the current study were to investigate the mitochondrial genome and molecular phylogeny of Lueyang black-bone chicken, and  provide  molecule base to preserve and explore the specific chicken strain.

2. Based on sequencing and clustering, the complete mitochondrial DNA map and sequences of Lueyang black-bone chicken were revealed, and two phylogenetic trees of Lueyang black-bone chickens based on D-loop sequences and the mitochondrial genome were constructed.

3. The results showed that the complete mitochondrial genome of Lueyang black-bone chickens is 16,784bp in size, consisting of 22 transfer RNA genes, two ribosomal RNA genes, 13 protein-coding genes, and one non-coding control region. The base composition of the complete mtDNA sequence is 30.28% for A, 23.78% for T, 32.42% for C, 13.52% for G. Additionally, 10 haplotypes of D-loop sequences in 32 Lueyang black-bone chickens were detected, which were distributed into 4 clades (A, B, C and E).

4. It was concluded that genetic diversity is wide in Lueyang black-bone chickens, and this strain has multiple maternal origins from different regions in China and neighbouring regions.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This research was supported by Key Science and Technology Program of Shaanxi Province, China [2016NY-084], National Natural Science Foundation of China (NSFC) [31402071].

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