Construction of a high-density genetic map and QTL mapping of leaf traits and plant growth in an interspecific F₁ population of Catalpa bungei × Catalpa duclouxii Dode.

ABSTRACT:

Background

Catalpa bungei is an important tree species used for timber in China and widely cultivated for economic and ornamental purposes. A high-density linkage map of C. bungei would be an efficient tool not only for identifying key quantitative trait loci (QTLs) that affect important traits, such as plant growth and leaf traits, but also for other genetic studies.

Results

Restriction site-associated DNA sequencing (RAD-seq) was used to identify molecular markers and construct a genetic map. Approximately 280.77 Gb of clean data were obtained after sequencing, and in total, 25,614,295 single nucleotide polymorphisms (SNPs) and 2,871,647 insertions-deletions (InDels) were initially identified in the genomes of 200 individuals of a C. bungei (7080) × Catalpa duclouxii (16-P

SUBMITTER: Lu N 

PROVIDER: S-EPMC6937828 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature