文献类型： 外文期刊

作者： Cao, You-Long ¹ ; Li, Yan-long ¹ ; Fan, Yun-Fang ¹ ; Li, Zhen ³ ; Yoshida, Kouki ⁵ ; Wang, Jie-Yu ⁶ ; Ma, Xiao-Kai ⁶ ; Wa ¹ ;

作者机构： 1.Ningxia Acad Agr & Forestry Sci, Natl Wolfberry Engn Res Ctr, Yinchuan 750002, Ningxia, Peoples R China

2.Ningxia Acad Agr & Forestry Sci, Inst Wolfberry Engn Technol, Yinchuan 750002, Ningxia, Peoples R China

3.Univ Ghent, Dept Plant Biotechnol & Bioinformat, B-9052 Ghent, Belgium

4.VIB, VIB Ctr Plant Syst Biol, B-9052 Ghent, Belgium

5.Taisei Corp, Technol Ctr, Yokohama, Kanagawa 2450051, Japan

6.Fujian Agr & Forestry Univ, Coll Landscape Architecture, Key Lab Natl Forestry & Grassland Adm Orchid Cons, Fuzhou 350002, Peoples R China

7.Chinese Acad Sci, Key Lab Plant Resources Conservat & Sustainable U, South China Bot Garden, Guangzhou 510650, Peoples R China

8.Univ Tsukuba, Fac Life & Environm Sci, Tsukuba, Ibaraki 3058572, Japan

9.Natl Inst Adv Ind Sci & Technol, Bioprod Res Inst, Tsukuba, Ibaraki 3058562, Japan

10.Saitama Univ, Grad Sch Sci & Engn, Sakura Ku, 255 Shimo Okubo, Saitama 3388570, Japan

11.Ritsumeikan Univ, Coll Life Sci, Kusatsu, Japan

12.Food & Fertilizer Technol Ctr Asian & Pacific Reg, 14 Wenchow St, Taipei 10648, Taiwan

13.Hebei Agr Univ, Coll Hort, Baoding 071000, Peoples R China

14.Fujian Agr & Forestry Univ, Fujian Coll & Univ Engn Res Inst Conservat & Util, Coll Forestry, Fuzhou 350002, Peoples R China

15.Natl Cheng Kung Univ, Orchid Res & Dev Ctr, Tainan 701, Taiwan

16.Natl Cheng Kung Univ, Inst Trop Plant Sci & Microbiol, Tainan 701, Taiwan

17.Natl Cheng Kung Univ, Dept Life Sci, Tainan 701, Taiwan

18.PubBio Tech, Wuhan 430070, Peoples R China

19.Natl Chung Hsing Univ, Inst Mol Biol, Taichung 40227, Taiwan

20.Univ Pretoria, Ctr Microbial Ecol & Genom, Dept Biochem Genet & Microbiol, ZA-0028 Pretoria, South Africa

21.Nanjing Agr Univ, Coll Hort, Nanjing, Peoples R China

期刊名称：COMMUNICATIONS BIOLOGY （ 影响因子：6.268； 五年影响因子：6.268 ）

ISSN：

年卷期： 2021 年 4 卷 1 期

页码：

收录情况： SCI

摘要： Wolfberry Lycium, an economically important genus of the Solanaceae family, contains approximately 80 species and shows a fragmented distribution pattern among the Northern and Southern Hemispheres. Although several herbaceous species of Solanaceae have been subjected to genome sequencing, thus far, no genome sequences of woody representatives have been available. Here, we sequenced the genomes of 13 perennial woody species of Lycium, with a focus on Lycium barbarum. Integration with other genomes provides clear evidence supporting a whole-genome triplication (WGT) event shared by all hitherto sequenced solanaceous plants, which occurred shortly after the divergence of Solanaceae and Convolvulaceae. We identified new gene families and gene family expansions and contractions that first appeared in Solanaceae. Based on the identification of self-incompatibility related-gene families, we inferred that hybridization hotspots are enriched for genes that might be functioning in gametophytic self-incompatibility pathways in wolfberry. Extremely low expression of LOCULE NUBER (LC) and COLORLESS NON-RIPENING (CNR) orthologous genes during Lycium fruit development and ripening processes suggests functional diversification of these two genes between Lycium and tomato. The existence of additional flowering locus C-like MADS-box genes might correlate with the perennial flowering cycle of Lycium. Differential gene expression involved in the lignin biosynthetic pathway between Lycium and tomato likely illustrates woody and herbaceous differentiation. We also provide evidence that Lycium migrated from Africa into Asia, and subsequently from Asia into North America. Our results provide functional insights into Solanaceae origins, evolution and diversification. Cao, Li, et al. sequence 13 perennial woody plant species of Lycium, and specifically provide a draft assembly of L. ruthenicum and a chromosome-level assembly of L. barbarum, the wolfberry or Goji berry. From a phylogenetic tree the authors identify an ancient hexaploidization event, and report the evolution of gene families including fruit ripening, fruit coloration, polysaccharide synthesis and self-incompatibility within Solanaceae and the general biogeography of L. barbarum.