Genome-wide association for agro-morphological traits in a triploid banana population with large chromosome rearrangements.

ABSTRACT: Banana breeding is hampered by the very low fertility of domesticated bananas and the lack of knowledge about the genetic determinism of agronomic traits. We analysed a breeding population of 2723 triploid hybrids resulting from crosses between diploid and tetraploid Musa acuminata parents, which was evaluated over three successive crop cycles for 24 traits relating to yield components and plant, bunch, and fruit architectures. A subset of 1129 individuals was genotyped by sequencing, revealing 205 612 single-nucleotide polymorphisms (SNPs). Most parents were heterozygous for one or several large reciprocal chromosomal translocations, which are known to impact recombination and chromosomal segregation. We applied two linear mixed models to detect associations between markers and tra

SUBMITTER: Rio S 

PROVIDER: S-EPMC11817881 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature