Lanping black-boned sheep was first discovered in the 1950s in Lanping county of China and characterized by black pigmentation on skin and internal organs. Due to the novel and unique trait, the genetic background of Lanping black-boned sheep is of great interest. The rapid development of high-throughput sequencing technology and the decrease in sequencing costs provide valuable resources and great opportunities for researchers to investigate genomic variations. However, the management and exploration of these large-scale genomic variations, such as single-nucleotide polymorphism(SNP) heavily rely on programming and command-line environments, which are challenging and time-consuming for most experimental biologists and sheep breeders. We present a SNP database of the Lanping black-boned Sheep (LpbbsSNPDB), which is an interactive web portal with a user-friendly interface that provides multiple analysis modules for retrieving, analyzing, and visualizing SNPs among 150 accessions, including 100 Lanping black-boned sheeps and 50 Lanping norm sheeps. This database is essential for accelerating studies on the functional genomics and screening of the molecular markers of molecular-assisted breeding in the Lanping black-boned sheep.
Analysis Modules
We here present 5 modules to retrieve and analyze the SNP dataset. Within each module, the user can select different parameters to retrieve and analyze the SNP dataset.
LDheatmap
![](img/ldheatmap.png)
This module provides a pipeline to retrieve SNPs and display pairwise linkage disequilibria between SNPs and allows the user select different parameters.
SNP Distribution
![](img/snpdistribution.png)
This module compares the conserved SNPs specific to different groups of Lanping black-boned sheep.
Phylogenetic
![](img/phylogenetics.png)
This module implements the functionality to perform phylogenetic analysis in user-specified genomic regions.
Diversity
![](img/diversity.png)
This module provides the functionality to calculate nucleotide diversity among groups of Lanping black-boned sheep accessions in user-specified genomic regions.
Extraction
![](img/extraction.png)
This module allows user to extract the detail informations of SNPs, annotation of genes and essential information on the 150 accessions used in the LpbbsSNPDB.