Hox genes reveal genomic DNA variation in tetraploid hybrids derived from Carassius auratus red var. (female) × Megalobrama amblycephala (male).

ABSTRACT:

Background

Allotetraploid F₁ hybrids (4nF₁) (AABB, 4n = 148) were generated from the distant hybridization of Carassius auratus red var. (RCC) (AA, 2n = 100) (♀) × Megalobrama amblycephala (BSB) (BB, 2n = 48) (♂). It has been reported that Hox gene clusters are highly conserved among plants and vertebrates. In this study, we investigated the genomic organization of Hox gene clusters in the allotetraploid F₁ hybrids and their parents to investigate the polyploidization process.

Results

There were three copies of Hox genes in the 4nF₁ hybrids, two copies in RCC and one copy in BSB. In addition, obvious variation and pseudogenization were observed in some Hox genes from 4nF_1. CONCLUSION: Our results reveal the influence of

SUBMITTER: Wang YD 

PROVIDER: S-EPMC5637053 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature