Identification and validation of mutation points associated with waxy phenotype in cassava.

ABSTRACT:

Background

The granule-bound starch synthase I (GBSSI) enzyme is responsible for the synthesis of amylose, and therefore, its absence results in individuals with a waxy starch phenotype in various amylaceous crops. The validation of mutation points previously associated with the waxy starch phenotype in cassava, as well as the identification of alternative mutant alleles in the GBSSI gene, can allow the development of molecular-assisted selection to introgress the waxy starch mutation into cassava breeding populations.

Results

A waxy cassava allele has been identified previously, associated with several SNPs. A particular SNP (intron 11) was used to develop SNAP markers for screening heterozygote types in cassava germplasm. Although the molecular segregation corresponds to t

SUBMITTER: do Carmo CD 

PROVIDER: S-EPMC7160975 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature