A Catalog of GNI-A1 Genes That Regulate Floret Fertility in a Diverse Bread Wheat Collection.

ABSTRACT: Modifying inflorescence architecture improves grain number and grain weight in bread wheat (Triticum aestivum). Allelic variation in Grain Number Increase 1 (GNI-A1) genes, encoding a homeodomain leucine zipper class I transcription factor, influences grain number and yield. However, allelic information about GNI-A1 in diverse germplasms remains limited. Here, we investigated GNI-A1 alleles in a panel of 252 diverse bread wheat accessions (NBRP core collection and HRO breeder's panel) by target resequencing. Cultivars carrying the reduced-function allele (105Y) were predominant in the NBRP panel, whereas the 105N functional allele was the major type in the HRO panel. Cultivars with the 105Y allele were distributed in Asian landraces but not in European ge

SUBMITTER: Sakuma S 

PROVIDER: S-EPMC10857310 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature