afila, the origin and nature of a major innovation in the history of pea breeding

Détails bibliographiques
Publié dans:	The New phytologist. - 1979. - 243(2024), 3 vom: 05. Aug., Seite 1247-1261
Auteur principal:	Tayeh, Nadim (Auteur)
Autres auteurs:	Hofer, Julie M I, Aubert, Grégoire, Jacquin, Françoise, Turner, Lynda, Kreplak, Jonathan, Paajanen, Pirita, Le Signor, Christine, Dalmais, Marion, Pflieger, Stéphanie, Geffroy, Valérie, Ellis, Noel, Burstin, Judith
Format:	Article en ligne
Langue:	English
Publié:	2024
Accès à la collection:	The New phytologist
Sujets:	Journal Article PALMATE‐LIKE PENTAFOLIATA (PALM) genes afila (af) mutation breeding history compound leaf morphology introgressed haplotypes legume megabase‐scale deletion pea (Pisum sativum L.) Plant Proteins Transcription Factors

Description
Résumé:	© 2024 The Authors. New Phytologist © 2024 New Phytologist Foundation. The afila (af) mutation causes the replacement of leaflets by a branched mass of tendrils in the compound leaves of pea - Pisum sativum L. This mutation was first described in 1953, and several reports of spontaneous af mutations and induced mutants with a similar phenotype exist. Despite widespread introgression into breeding material, the nature of af and the origin of the alleles used remain unknown. Here, we combine comparative genomics with reverse genetic approaches to elucidate the genetic determinants of af. We also investigate haplotype diversity using a set of AfAf and afaf cultivars and breeding lines and molecular markers linked to seven consecutive genes. Our results show that deletion of two tandemly arranged genes encoding Q-type Cys(2)His(2) zinc finger transcription factors, PsPALM1a and PsPALM1b, is responsible for the af phenotype in pea. Eight haplotypes were identified in the af-harbouring genomic region on chromosome 2. These haplotypes differ in the size of the deletion, covering more or less genes. Diversity at the af locus is valuable for crop improvement and sheds light on the history of pea breeding for improved standing ability. The results will be used to understand the function of PsPALM1a/b and to transfer the knowledge for innovation in related crops
Description:	Date Completed 04.07.2024 Date Revised 04.07.2024 published: Print-Electronic Citation Status MEDLINE
ISSN:	1469-8137
DOI:	10.1111/nph.19800