First chromosome-scale genome of Cornus kousa K2‡.

IF 2.4 3区生物学 Q3 GENETICS & HEREDITY

G3: Genes|Genomes|Genetics Pub Date : 2026-10-07 DOI:10.1093/g3journal/jkag229

Trinity P H Mehler, Sarah L Boggess, Marcin Nowicki, Denita Hadziabdic, DeWayne Shoemaker, Robert N Trigiano, William E Klingeman, Thomas J Molnar, Sheron A Simpson, Ramey C Youngblood, Amanda M Hulse-Kemp, Brian E Scheffler, Margaret E Staton

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Abstract

Kousa dogwood (Cornus kousa Hance) is a popular flowering ornamental tree in the United States, largely due to its pest and disease tolerance. Here, we present the first chromosome-scale, diploid genome assembly of C. kousa K2, a foundational breeding parent. The final chromosome-scale genome assemblies are 1602.739 Mb for Hap 1 and 1598.929 Mb for Hap 2. The complete Benchmarking Universal Single-Copy Orthologs (BUSCO) for Hap 1 and 2 were 98.8 and 98.4%, respectively. Between the 2 haplotypes, 98.97% of the genome is placed into chromosomes. 30,799 and 31,044 genes were annotated in Hap 1 and Hap 2, respectively. This annotated genome assembly for C. kousa provides insight into the genomic composition of the species and will enhance our understanding of the genetic control of traits of interest in breeding programs and the evolutionary history of the Cornus genus.

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山茱萸K2的第一个染色体尺度基因组。

山茱萸（Cornus Kousa Hance）在美国是一种受欢迎的开花观赏树，主要是由于它的害虫和疾病耐受性。在这里，我们提出了第一个染色体规模，二倍体基因组组装的C. kousa K2，一个基础育种亲本。最终的染色体尺度基因组组装为1602.739 Mb的Hap 1和1598.929 Mb的Hap 2。hap1和hap1的完整基准通用单拷贝同源性（BUSCO）分别为98.8%和98.4%。在这两种单倍型之间，98.97%的基因组位于染色体中。在Hap 1和Hap 2中分别注释了30,799和31,044个基因。这一带有注释的山茱萸基因组组装提供了对该物种基因组组成的深入了解，并将增强我们对育种计划和山茱萸属进化历史中感兴趣的性状的遗传控制的理解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

G3: Genes|Genomes|Genetics GENETICS & HEREDITY-

CiteScore

5.10

自引率

3.80%

发文量

305

审稿时长

3-8 weeks

期刊介绍： G3: Genes, Genomes, Genetics provides a forum for the publication of high‐quality foundational research, particularly research that generates useful genetic and genomic information such as genome maps, single gene studies, genome‐wide association and QTL studies, as well as genome reports, mutant screens, and advances in methods and technology. The Editorial Board of G3 believes that rapid dissemination of these data is the necessary foundation for analysis that leads to mechanistic insights. G3, published by the Genetics Society of America, meets the critical and growing need of the genetics community for rapid review and publication of important results in all areas of genetics. G3 offers the opportunity to publish the puzzling finding or to present unpublished results that may not have been submitted for review and publication due to a perceived lack of a potential high-impact finding. G3 has earned the DOAJ Seal, which is a mark of certification for open access journals, awarded by DOAJ to journals that achieve a high level of openness, adhere to Best Practice and high publishing standards.