Journal
NATURE GENETICS
Volume 53, Issue 5, Pages 752-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41588-021-00831-0
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Funding
- National Key Research and Development Program of China [2019YFC1711000]
- Shenzhen Municipal Government of China [JCYJ20170817145512467]
- Guangdong Provincial Key Laboratory of Genome Read and Write [2017B030301011]
- Dutch Ministry of Agriculture, Nature and Food Quality [KB-34-013-001]
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This study conducted whole-genome resequencing of 445 Lactuca accessions, including major lettuce crop types and wild relative species, providing a comprehensive map of lettuce genome variations and shedding light on the domestication history of cultivated lettuce. The research revealed that lettuce was first domesticated near the Caucasus, marked by loss of seed shattering, and identified the genetic architecture of other domestication traits and wild introgressions in major resistance clusters in the lettuce genome. This study offers valuable genomic resources for crop breeding and contributes to a better understanding of the domestication history of cultivated lettuce.
Whole-genome resequencing of 445 Lactuca accessions, including major lettuce crop types and wild relative species, provides a comprehensive map of lettuce genome variations and sheds light on the domestication history of cultivated lettuce. Lettuce (Lactuca sativa) is an important vegetable crop worldwide. Cultivated lettuce is believed to be domesticated from L. serriola; however, its origins and domestication history remain to be elucidated. Here, we sequenced a total of 445 Lactuca accessions, including major lettuce crop types and wild relative species, and generated a comprehensive map of lettuce genome variations. In-depth analyses of population structure and demography revealed that lettuce was first domesticated near the Caucasus, which was marked by loss of seed shattering. We also identified the genetic architecture of other domestication traits and wild introgressions in major resistance clusters in the lettuce genome. This study provides valuable genomic resources for crop breeding and sheds light on the domestication history of cultivated lettuce.
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