INDEL variation in the regulatory region of the major flowering time gene LanFTc1 is associated with vernalization response and flowering time in narrow‐leafed lupin (Lupinus angustifolius L.)

摘要: Narrow-leafed lupin (Lupinus angustifolius L.) cultivation was transformed by 2 dominant vernalization-insensitive, early flowering time loci known as Ku and Julius (Jul), which allowed expansion into shorter season environments. However, reliance on these has limited genetic phenotypic diversity for environmental adaptation in cultivated lupin. We recently predicted that a 1,423-bp deletion the cis-regulatory region of LanFTc1, FLOWERING LOCUS T (FT) homologue, derepressed expression LanFTc1 underlying cause phenotype. Here, we surveyed diverse germplasm variation identified further deletions 1,208 5,162 bp 5' regulatory region, overlap deletion. Additionally, confirmed no other polymorphisms were perfectly associated with vernalization responsiveness. Phenotyping gene analyses revealed Jul accessions possessed 5,162-bp equally capable removing requirement up-regulating expression. The 1,208-bp intermediate phenology, responsiveness, therefore may be useful expanding agronomic This insertion/deletion series also help resolve how response is mediated at molecular level legumes.