Genetic mapping of the gene controlling butterhead and compact plant architecture. (IMAGE)

Nanjing Agricultural University The Academy of Science

Genetic mapping of the gene controlling butterhead and compact plant architecture.

Caption

Genetic mapping of the gene controlling butterhead and compact plant architecture. A Upper panel, the two parents, a stem lettuce (Ws1168, left) and a butterhead lettuce (W6-29885, right). Lower panel, the two phenotypes of individuals from an F3 family derived from the Ws1168 × W6-29885 cross. Scale bar = 10 cm. B BSR analysis of butterhead plant architecture in the segregating F3 family in A. The x-axis represents the nine chromosomes of lettuce. The y-axis represents the Δ(SNP index) between two extreme pools. A single locus on chromosome 1 controls plant architecture in the segregating population. C Upper panel, the two parents, a stem lettuce (Y37, left) and a loose-leaf lettuce (S1, right). Lower panel, the two phenotypes in an F4 family derived from the cross Y37 × S1. Scale bar = 10 cm. D BSR assay of compact plant architecture in the F4 family in C. E Fine mapping of the gene controlling compact plant architecture. Numbers between two neighboring markers refer to the number of recombinants among 4392 individuals in the F4 family. F Gene structure of LG1149597 (LsKIPK), and its sequences in the four parents used in two crosses. The arrow shows the nonsense mutation, converting the codon CGA to TGA.

Credit

Horticulture Research

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