Next Article in Journal
In Vitro Propagation of an Endangered Helianthus verticillatus by Axillary Bud Proliferation
Previous Article in Journal
Together for the Better: Improvement of a Model Based Strategy for Grapevine Downy Mildew Control by Addition of Potassium Phosphonates
Open AccessArticle

Genomic Insight into Differentiation and Selection Sweeps in the Improvement of Upland Cotton

1
Institute of Cotton Research, Chinese Academy of Agricultural Sciences, State Key Laboratory of Cotton Biology, Anyang 455000, China
2
Research Base, State Key Laboratory of Cotton Biology, Zhengzhou University, Zhengzhou 450001, China
3
Ayub Agriculture Research Institute, Cotton Research Institute, Multan 66000, Pakistan
4
Department of Electronics and Information Engineering, Sichuan University, Chengdu 610000, China
5
School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450001, China
*
Author to whom correspondence should be addressed.
Plants 2020, 9(6), 711; https://doi.org/10.3390/plants9060711
Received: 23 April 2020 / Revised: 21 May 2020 / Accepted: 29 May 2020 / Published: 3 June 2020
Upland cotton is the most economically important fibre crop. The human-mediated selection has resulted in modern upland cultivars with higher yield and better fibre quality. However, changes in genome structure resulted from human-mediated selection are poorly understood. Comparative population genomics offers us tools to dissect the genetic history of domestication and helps to understand the genome-wide effects of human-mediated selection. Hereby, we report a comprehensive assessment of Gossypium hirsutum landraces, obsolete cultivars and modern cultivars based on high throughput genome-wide sequencing of the core set of genotypes. As a result of the genome-wide scan, we identified 93 differential regions and 311 selection sweeps associated with domestication and improvement. Furthermore, we performed genome-wide association studies to identify traits associated with the differential regions and selection sweeps. Our study provides a genetic basis to understand the domestication process in Chinese cotton cultivars. It also provides a comprehensive insight into changes in genome structure due to selection and improvement during the last century. We also identified multiple genome-wide associations (GWAS associations) for fibre yield, quality and other morphological characteristics. View Full-Text
Keywords: upland cotton; phylogeny; domestication; selection sweeps upland cotton; phylogeny; domestication; selection sweeps
Show Figures

Figure 1

MDPI and ACS Style

Nazir, M.F.; Jia, Y.; Ahmed, H.; He, S.; Iqbal, M.S.; Sarfraz, Z.; Ali, M.; Feng, C.; Raza, I.; Sun, G.; Pan, Z.; Du, X. Genomic Insight into Differentiation and Selection Sweeps in the Improvement of Upland Cotton. Plants 2020, 9, 711.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop