Sex chromosomal dimorphisms narrated by X-chromosome translocation in a spiny frog (Quasipaa boulengeri)
文献类型：期刊论文
| 作者 | Yuan, Xiuyun1,2; Xia, Yun2; Zeng, Xiaomao2 |
| 刊名 | FRONTIERS IN ZOOLOGY
 |
| 出版日期 | 2019-11-27 |
| 卷号 | 15页码:47 |
| 关键词 | Sex-linked locus Sex chromosomal dimorphisms Whole-chromosome painting X-chromosome translocation |
| ISSN号 | 1742-9994 |
| DOI | 10.1186/s12983-018-0291-8 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Background: In the general model of sex chromosome evolution for diploid dioecious organisms, the Y (or W) chromosome is derived, while the homogametic sex presumably represents the ancestral condition. However, in the frog species Quasipaa boulengeri, heteromorphisms caused by a translocation between chromosomes 1 and 6 are not related to sex, because the same heteromorphic chromosomes are found both in males and females at the cytological level. To confirm whether those heteromorphisms are unrelated to sex, a sex-linked locus was mapped at the chromosomal level and sequenced to identify any haplotype difference between sexes. Results: Chromosome 1 was assigned to the sex chromosome pair by mapping the sex-linked locus. X-chromosome translocation was demonstrated and confirmed by the karyotypes of the progeny. Translocation heteromorphisms were involved in normal and translocated X chromosomes in the rearranged populations. Based on phylogenetic inference using both male and female sex-linked haplotypes, recombination was suppressed not only between the Y and normal X chromosomes, respectively the Y and translocated X chromosomes, but also between the normal and translocated X chromosomes. Both males and females shared not only the same translocation heteromorphisms but also the X chromosomal dimorphisms in this frog. Conclusions: The reverse of the typical situation, in which the X is derived and the Y has remained unchanged, is known to be very rare. In the present study, X-chromosome translocation has been known to cause sex chromosomal dimorphisms. The X chromosome has gone processes of genetic differentiation and/or structural changes by chance, which may facilitate sex chromosome differentiation. These sex chromosomal dimorphisms presenting in both sexes may represent the early stages of sex chromosome differentiation and aid in understanding sex chromosome evolution. |
| 学科主题 | Animal Sciences |
| URL标识 | 查看原文 |
| WOS关键词 | Y-CHROMOSOMES ; EVOLUTION ; DIFFERENTIATION ; ORIGINS ; CHINA ; MODEL ; DNA |
| WOS研究方向 | Zoology |
| 语种 | 英语 |
| WOS记录号 | WOS:000451422600001 |
| 出版者 | BMC |
| 源URL | [http://210.75.237.14/handle/351003/30104]  |
| 专题 | 食品安全与环境治理领域_中国科学院环境与应用微生物重点实验室 |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Chengdu Inst Biol, 9 Sect 4,Renmin Nan Rd, Chengdu 610041, Sichuan, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Yuan, Xiuyun,Xia, Yun,Zeng, Xiaomao. Sex chromosomal dimorphisms narrated by X-chromosome translocation in a spiny frog (Quasipaa boulengeri)[J]. FRONTIERS IN ZOOLOGY,2019,15:47. |
| APA | Yuan, Xiuyun,Xia, Yun,&Zeng, Xiaomao.(2019).Sex chromosomal dimorphisms narrated by X-chromosome translocation in a spiny frog (Quasipaa boulengeri).FRONTIERS IN ZOOLOGY,15,47. |
| MLA | Yuan, Xiuyun,et al."Sex chromosomal dimorphisms narrated by X-chromosome translocation in a spiny frog (Quasipaa boulengeri)".FRONTIERS IN ZOOLOGY 15(2019):47. |
入库方式： OAI收割
来源：成都生物研究所
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