Hass

Hass performs genome-wide single nucleotide polymorphism (SNP) discovery and genomic characterization in Persea americana Mill. (Hass) to support analysis of population structure and genetic diversity.


Key Features:

  • Draft Assembly Development: Utilizes an avocado 'Hass' draft assembly as a reference genome for genomic analyses.
  • Genomic Data Analysis: Processes genotyping-by-sequencing (GBS) data using R packages for handling and analysis of large-scale genomic datasets.
  • SNP Marker Production: Generates an average of 5.72 million reads per individual and identifies 7,108 SNP markers across 71 avocado accessions.
  • Population Structure Analysis: Employs identified molecular markers to categorize accessions into four groups: Mexican, Guatemalan, West Indian, and a Guatemalan × Mexican hybrid group.

Scientific Applications:

  • Breeding Program Support: Provides SNP markers and population structure data to address gaps in molecular tools for avocado breeding programs.
  • Genetic Diversity Studies: Enables characterization of genetic diversity across accessions representing Mexican, Guatemalan, and West Indian horticultural races and hybrids.
  • Population Structure Insights: Supports differentiation of botanical races and identification of hybrid groups for targeted cultivar development.

Methodology:

Uses a Hass draft genome assembly as reference and processes genotyping-by-sequencing (GBS) data using R packages to identify SNP markers.

Topics

Details

Tool Type:
command-line tool
Programming Languages:
R
Added:
1/14/2020
Last Updated:
12/7/2020

Operations

Publications

Talavera A, Soorni A, Bombarely A, Matas AJ, Hormaza JI. Genome-Wide SNP discovery and genomic characterization in avocado (Persea americana Mill.). Scientific Reports. 2019;9(1). doi:10.1038/s41598-019-56526-4. PMID:31882769. PMCID:PMC6934854.

PMID: 31882769
PMCID: PMC6934854
Funding: - Ministerio de Economía y Competitividad: BES-2014-068832