Article (Scientific journals)
Fine mapping and identification of the fuzzless gene GaFzl in DPL972 (Gossypium arboreum).
Feng, Xiaoxu; Cheng, Hailiang; Zuo, Dongyun et al.
2019In Theoretical and Applied Genetics, 132 (8), p. 2169-2179
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Keywords :
Cotton Fiber; Gene Expression Regulation, Plant; Map-based cloning; Marker-assisted selection; Next-generation sequencing; Agronomy and Crop Science
Abstract :
[en] KEY MESSAGE: The fuzzless gene GaFzl was fine mapped to a 70-kb region containing a GIR1 gene, Cotton_A_11941, responsible for the fuzzless trait in Gossypium arboreum DPL972. Cotton fiber is the most important natural textile resource. The fuzzless mutant DPL972 (Gossypium arboreum) provides a useful germplasm resource to explore the molecular mechanism underlying fiber and fuzz initiation and development. In our previous research, the fuzzless gene in DPL972 was identified as a single dominant gene and named GaFzl. In the present study, we fine mapped this gene using F2 and BC1 populations. By combining traditional map-based cloning and next-generation sequencing, we mapped GaFzl to a 70-kb region containing seven annotated genes. RNA-Sequencing and re-sequencing analysis narrowed these candidates to two differentially expressed genes, Cotton_A_11941 and Cotton_A_11942. Sequence alignment uncovered no variation in coding or promoter regions of Cotton_A_11942 between DPL971 and DPL972, whereas two single-base mutations in the promoter region and a TTG insertion in the coding region were detected in Cotton_A_11941 in DPL972. Cotton_A_11941 encoding a homologous gene of GIR1 (GLABRA2-interacting repressor) in Arabidopsis thaliana is thus the candidate gene most likely responsible for the fuzzless trait in DPL972. Our findings should lead to a better understanding of cotton fuzz formation, thereby accelerating marker-assisted selection during cotton breeding.
Disciplines :
Agriculture & agronomy
Author, co-author :
Feng, Xiaoxu ;  Université de Liège - ULiège > TERRA Research Centre ; State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Cheng, Hailiang;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Zuo, Dongyun;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Zhang, Youping;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Wang, Qiaolian;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Liu, Ke;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Ashraf, Javaria;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Yang, Qiuhong;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Li, Simin;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Chen, Xiaoqin;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China
Song, Guoli;  State Key Laboratory of Cotton Biology, Institute of Cotton Research, Chinese Academy of Agricultural Sciences, Anyang, 455000, Henan, China. sglzms@163.com
Language :
English
Title :
Fine mapping and identification of the fuzzless gene GaFzl in DPL972 (Gossypium arboreum).
Publication date :
August 2019
Journal title :
Theoretical and Applied Genetics
ISSN :
0040-5752
eISSN :
1432-2242
Publisher :
Springer Verlag, Germany
Volume :
132
Issue :
8
Pages :
2169-2179
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 04 September 2022

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