AP2	APETALA2
ARA	Acetylene reduction assay
ATP	Adenosine triphosphate
BNF	Biological fixation of atmospheric nitrogen
CE	Ethylene molar concentration
CRE	Cytokinin response 1
CTAB	Cetyl trimethylammonium bromide
ddRADseq	Double-digest RAD sequencing
DNF2	Defective in nitrogen fixation 2
EFD	Ethylene response factor required for nodule differentiation
ERF	Ethylene response factor
ERF3	Ethylene-responsive transcription factor 3
FLOT	Flotillin
GATK	Genome Analysis Toolkit
Hs	Expected heterozygosity
InDel	Insertion/deletions
LG	Linkage group
MOT1	Molybdate transporter 1
ModABC	ATP-binding cassette transporter involved in molybdate transport
Mt	Medicago truncatula
NFP	Nod factor perception
NF-YC2	Nuclear transcription factor Y subunit C2
NGS	Next-generation sequencing
Nod factors	Nodulation factors
PC	Principal component
PCA	Principal component analysis
PNO1	partner of NOB1-like
RLK	Receptor-like kinases
RR2	Cytokinin responsive gene
SeqCap	Hybridization-based sequence capture
SNP	Single-nucleotide polymorphism
SST	Symbiotic sulfate transporter
Tp	Trifolium pratense
VEP	Variant effect predictor
WOX11	WUSCHEL-related homeobox gene