title: Genomic Tools in Pea Breeding Programs: Status and Perspectives.
abstract: Pea (Pisum sativum L.) is an annual cool-season legume and one of the oldest domesticated crops. Dry pea seeds contain 22-25% protein, complex starch and fiber constituents, and a rich array of vitamins, minerals, and phytochemicals which make them a valuable source for human consumption and livestock feed. Dry pea ranks third to common bean and chickpea as the most widely grown pulse in the world with more than 11 million tons produced in 2013. Pea breeding has achieved great success since the time of Mendel's experiments in the mid-1800s. However, several traits still require significant improvement for better yield stability in a larger growing area. Key breeding objectives in pea include improving biotic and abiotic stress resistance and enhancing yield components and seed quality. Taking advantage of the diversity present in the pea genepool, many mapping populations have been constructed in the last decades and efforts have been deployed to identify loci involved in the control of target traits and further introgress them into elite breeding materials. Pea now benefits from next-generation sequencing and high-throughput genotyping technologies that are paving the way for genome-wide association studies and genomic selection approaches. This review covers the significant development and deployment of genomic tools for pea breeding in recent years. Future prospects are discussed especially in light of current progress toward deciphering the pea genome.
authors.affiliation: INRA, UMR1347 Agroécologie Dijon, France.
authors.forename: Nadim
authors.initials: N
authors.lastname: Tayeh
authors.affiliation: INRA, UMR1347 Agroécologie Dijon, France.
authors.forename: Grégoire
authors.initials: G
authors.lastname: Aubert
authors.affiliation: INRA, UMR1349 Institut de Génétique Environment et Protection des Plantes Le Rheu, France.
authors.forename: Marie-Laure
authors.initials: ML
authors.lastname: Pilet-Nayel
authors.affiliation: INRA, USC Institut Charles Viollette-Adaptation au Froid du Pois Estrées-Mons, France.
authors.forename: Isabelle
authors.initials: I
authors.lastname: Lejeune-Hénaut
authors.affiliation: Crop Development Centre, College of Agriculture and Bioresources, University of Saskatchewan Saskatoon, SK, Canada.
authors.forename: Thomas D
authors.initials: TD
authors.lastname: Warkentin
authors.affiliation: INRA, UMR1347 Agroécologie Dijon, France.
authors.forename: Judith
authors.initials: J
authors.lastname: Burstin
keywords: QTL and association mapping; breeding targets; genetic diversity; genetic maps; genomic resources; genotyping platforms; pea (Pisum sativum L.)