A near-complete chromosome-level genome assembly of looseleaf lettuce (Lactuca sativa var. crispa)
文献类型： 外文期刊
作者： Zhang, Bin 1 ; Xue, Yingfei 3 ; Liu, Xue 1 ; Ding, Haifeng 1 ; Yang, Yesheng 5 ; Wang, Chenchen 6 ; Xu, Zhaoyang 6 ; Zhou, Jun 6 ; Sun, Cheng 3 ; Tang, Jinfu 4 ; Li, Dayong 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Natl Engn Res Ctr Vegetables, Beijing 100097, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, State Key Lab Vegetable Biobreeding, Beijing 100097, Peoples R China
3.Capital Normal Univ, Coll Life Sci, Beijing 100048, Peoples R China
4.China Acad Chinese Med Sci, Natl Resource Ctr Chinese Mat Med, State Key Lab Qual Ensurance & Sustainable Use Dao, Beijing 100700, Peoples R China
5.Jingyan Yinong Beijing Seed Scitech Co Ltd, Beijing 100097, Peoples R China
6.Shandong Normal Univ, Coll Life Sci, Jinan 250014, Peoples R China
7.Beijing Key Lab Vegetable Germplasms Improvement, Beijing 100097, Peoples R China
8.Key Lab Biol & Genet Improvement Hort Crops North, Beijing 100097, Peoples R China
期刊名称：SCIENTIFIC DATA （ 影响因子：6.9； 五年影响因子：8.7 ）
ISSN：
年卷期： 2024 年 11 卷 1 期
页码：
收录情况： SCI
摘要： Lettuce (Lactuca sativa L., Asteraceae) is one of the most important vegetable crops, known for its various horticultural types and significant morphological variation. The first reference genome of lettuce, a crisphead type (L. sativa var. capitata cv. Salinas), was previously released. Here, we reported a near-complete chromosome-level reference genome for looseleaf lettuce (L. sativa var. crispa). PacBio high-fidelity sequencing, Oxford Nanopore, and Hi-C technologies were employed to produce genome assembly. The final assembly is 2.59 Gb in length with a contig N50 of 205.47 Mb, anchored onto nine chromosomes, containing 14 recognizable telomeres and only 11 gaps. Repetitive sequences account for 77.11% of the genome, and 41,375 protein-coding genes were predicted, with 99.10% of these assigned functional annotations. This chromosome-level genome enriched genomic resources for various horticultural types of lettuce and will facilitate the characterization of morphological variation and genetic improvement in lettuce.
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