Suppressed Recombination of Sex Chromosomes Is Not Caused by Chromosomal Reciprocal Translocation in Spiny Frog (Quasipaa boulengeri)
文献类型：期刊论文
| 作者 | Yuan, Xiuyun1,2; Xia, Yun1; Zeng, Xiaomao1 |
| 刊名 | FRONTIERS IN GENETICS
 |
| 出版日期 | 2019-08-27 |
| 卷号 | 9页码:288 |
| 关键词 | sex determination nascent sex chromosome reciprocal translocation suppressed recombination amphibians |
| ISSN号 | 1664-8021 |
| DOI | 10.3389/fgene.2018.00288 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Chromosome rearrangements (CRs) are perceived to be related to sex chromosome evolution, but it is a matter of controversy whether CRs are the initial causative mechanism of suppressed recombination for sex differentiation. The early stages of sex chromosome evolution in amphibians may represent intermediate states of differentiation, and if so, they potentially shed light on the ultimate cause of suppressed recombination and the role of CRs in sex chromosome differentiation. In this paper, we showed that sex determination differs among 16 populations of spiny frog (Quasipaa boulengen), in which individuals have normal and rearranged chromosomes caused by reciprocal translocation. In eastern areas, without translocation, genetic differentiation between sexes was relatively low, suggesting unrestricted recombination. In comparison, in western populations that have both normal and translocated chromosomes, a male-heterogametic system and lack of X-Y recombination were identified by male-specific alleles and heterozygote excess. However, such genetic differentiation between sexes in western populations was not directly related to karyotypes, as it was found in individuals with both normal and translocated karyotypes. In the western Sichuan Basin, male-specific and translocation-specific allelic frequency distributions suggested that recombination of sex-differentiation ceased in all populations, but recombination suppression caused by translocation did not exist in some populations. Combined with phylogenetic inference, this indicated that the establishment of sex-linkage had taken place independently of reciprocal translocation, and translocation was not the ultimate cause of sex chromosome differentiation. Furthermore, comparison of the genetic diversity of alleles on Y chromosomes, X chromosomes, and autosomes in western populations showed a reduction of effective population size on sex chromosomes, which may be caused by reciprocal translocation. It indicates that, although it is not the ultimate cause of recombination suppression, reciprocal translocation may enhance sex chromosome differentiation. |
| URL标识 | 查看原文 |
| WOS关键词 | ANURA DICROGLOSSIDAE ; Y-CHROMOSOME ; DELETERIOUS MUTATIONS ; BACKGROUND SELECTION ; RANA-RUGOSA ; EVOLUTION ; POPULATION ; DNA ; DIFFERENTIATION ; REARRANGEMENTS |
| WOS研究方向 | Genetics & Heredity |
| 语种 | 英语 |
| WOS记录号 | WOS:000442769600001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://210.75.237.14/handle/351003/30179]  |
| 专题 | 环境治理与食品安全领域_农业生物技术研究 |
| 作者单位 | 1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu, Sichuan, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Xiuyun,Xia, Yun,Zeng, Xiaomao. Suppressed Recombination of Sex Chromosomes Is Not Caused by Chromosomal Reciprocal Translocation in Spiny Frog (Quasipaa boulengeri)[J]. FRONTIERS IN GENETICS,2019,9:288. |
| APA | Yuan, Xiuyun,Xia, Yun,&Zeng, Xiaomao.(2019).Suppressed Recombination of Sex Chromosomes Is Not Caused by Chromosomal Reciprocal Translocation in Spiny Frog (Quasipaa boulengeri).FRONTIERS IN GENETICS,9,288. |
| MLA | Yuan, Xiuyun,et al."Suppressed Recombination of Sex Chromosomes Is Not Caused by Chromosomal Reciprocal Translocation in Spiny Frog (Quasipaa boulengeri)".FRONTIERS IN GENETICS 9(2019):288. |
入库方式： OAI收割
来源：成都生物研究所
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