Genomic analyses reveal the stepwise domestication and genetic mechanism of curd biogenesis in cauliflower.
Nat Genet
; 56(6): 1235-1244, 2024 Jun.
Article
em En
| MEDLINE
| ID: mdl-38714866
ABSTRACT
Cauliflower (Brassica oleracea L. var. botrytis) is a distinctive vegetable that supplies a nutrient-rich edible inflorescence meristem for the human diet. However, the genomic bases of its selective breeding have not been studied extensively. Herein, we present a high-quality reference genome assembly C-8 (V2) and a comprehensive genomic variation map consisting of 971 diverse accessions of cauliflower and its relatives. Genomic selection analysis and deep-mined divergences were used to explore a stepwise domestication process for cauliflower that initially evolved from broccoli (Curd-emergence and Curd-improvement), revealing that three MADS-box genes, CAULIFLOWER1 (CAL1), CAL2 and FRUITFULL (FUL2), could have essential roles during curd formation. Genome-wide association studies identified nine loci significantly associated with morphological and biological characters and demonstrated that a zinc-finger protein (BOB06G135460) positively regulates stem height in cauliflower. This study offers valuable genomic resources for better understanding the genetic bases of curd biogenesis and florescent development in crops.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Brassica
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Genoma de Planta
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Genômica
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Estudo de Associação Genômica Ampla
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Domesticação
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article