文献类型： 外文期刊

作者： Feng, Yanlei ¹ ; Wang, Yukang ¹ ; Lu, Hejun ¹ ; Li, Jun ¹ ; Akhter, Delara ¹ ; Liu, Fang ⁶ ; Zhao, Ting ¹ ; Shen, Xingxing ¹ ; Li, Xiaobo ⁴ ; Whelan, James ⁸ ; Zhang, Tianzhen ¹ ; Hu, Jianping ⁹ ; Pan, Ronghui ¹ ;

作者机构： 1.Zhejiang Univ, Coll Agr & Biotechnol, Hangzhou 311215, Zhejiang, Peoples R China

2.Zhejiang Univ, ZJU Hangzhou Global Sci & Technol Innovat Ctr, Hangzhou 311215, Zhejiang, Peoples R China

3.Zhejiang Lab, Hangzhou 311121, Zhejiang, Peoples R China

4.Westlake Univ, Sch Life Sci, Key Lab Growth Regulat & Translat Res Zhejiang Pro, Hangzhou 310024, Zhejiang, Peoples R China

5.Sylhet Agr Univ, Dept Genet & Plant Breeding, Sylhet 3100, Bangladesh

6.Chinese Acad Agr Sci, State Key Lab Cotton Biol, Inst Cotton Res, Anyang 455000, Henan, Peoples R China

7.Westlake Inst Adv Study, Inst Biol, Hangzhou 310024, Zhejiang, Peoples R China

8.Zhejiang Univ, Coll Life Sci, Hangzhou 310058, Zhejiang, Peoples R China

9.Michigan State Univ, Dept Energy Plant Res Lab, E Lansing, MI 48824 USA

10.Plant Biol Dept, E Lansing, MI 48824 USA

关键词： Cotton evolution; Cotton phylogeny; Lint fiber cotton; Mitochondrial genome; Mitochondrial genes

期刊名称：CROP JOURNAL （ 影响因子：6.6； 五年影响因子：6.5 ）

ISSN： 2095-5421

年卷期： 2023 年 11 卷 6 期

页码：

收录情况： SCI

摘要： Cotton is a major crop that provides the most important renewable textile fibers in the world. Studies of the taxonomy and evolution of cotton species have received wide attentions, not only due to cotton's economic value but also due to the fact that Gossypium is an ideal model system to study the origin, evolution, and cultivation of polyploid species. Previous studies suggested the involvement of mitochondrial genome editing sites and copy number as well as mitochondrial functions in cotton fiber elongation. Whereas, with only a few mitogenomes assembled in the cotton genus Gossypium, our knowledge about their roles in cotton evolution and speciation is still scarce. To close this gap, here we assembled 20 mito-genomes from 15 cotton species spanning all the cotton clades (A-G, K, and AD genomes) and 5 cotton relatives using short and long sequencing reads. Systematic analyses uncovered a high level of mitochon-drial gene sequence conservation, abundant sequence repeats and many insertions of foreign sequences, as well as extensive structural variations in cotton mitogenomes. The sequence repeats and foreign sequences caused significant mitogenome size inflation in Gossypium and its close relative Kokia in gen-eral, while there is no significant difference between the lint and fuzz cotton mitogenomes in terms of gene content, RNA editing, and gene expression level. Interestingly, we further revealed the specific pres-ence and expression of two novel mitochondrial open reading frames (ORFs) in lint-fiber cotton species. Finally, these structural features and novel ORFs help us gain valuable insights into the history of cotton evolution and polyploidization and the origin of species producing long lint fibers from a mitogenomic perspective.(c) 2023 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).