Pea Database Collaboration Project/Pea Genetics

Until I or others have time, this is the best pea breeding information i can provide. This is my blog post on pea crossing. I'm working on restoring the non-working photos below.

https://keen101.wordpress.com/2015/08/19/pea-breeding-resources/

Pea Trait Name	Dominant / recessive	Locus / Chromosome	Notes
Red-seeds (ruby)	rec	0
Astriatus (Astr)	DOM	0	Pods with short purple-violet longitudinal stripes.
convex pods #1 (co)	rec	0
concave pods #2	rec	0
dehiscent pod #3	rec	0
“waxless pods”	Semi-Dom	0
Stringless-pods (sin)	rec	0
spotted pod #2 (rups)	rec	0
Obs	DOM	0	Violet patterns on testa from seed-genes F, Fs, U<st or pod-genes Pu, Pur enlarge to cover part of or entire testa, obscuratum. Vitality and high yield have often been found positively correlated with Obs.
Purple Seed Testa (put)	rec	0	Solid purple coloured testa, like U.
Nap gene (nap)	rec	1
orange cotyledons (Orc)	Semi-Dom	1
Purple-Pod gene #2 (Pur)	DOM	1	Purple pods when together with Pu. Four alleles reported: Pur, uniform purple; pur<a, major part purple; pur<b, less colour on pod, may limit colour to funiculus. Character can be variable in expression and unstable. Studies have show that a pigmented funiculus differentiates the presence of Pur from Pu (non-pigmented).
Color inhibition (a)	rec	1
Hyper-tendtils (af)	rec	1	parsley pea with (tl)
spotted pod #1 (rup)	rec	1
cotyledons green (I)	rec	1
Salmon-coloured testa	rec	1
Orange-pod (orp)	rec	2
Flower number #1 (fn)	rec	2	Increasing number of flowers per inflorescence. Fn Fna is one-flowered; Fn fna and fn Fna two flowered; fn fna three-to several flowered. See also fna.
Purple-Pod gene #1 (Pu)	DOM	3	Together with Pur purple pods, expression requires A. Pu Pur A Am B Gp purple pod; Pu Pur A and am or b or gp red pods.
Pink Color (b)	rec	3
dehiscent pod #2	DOM	3
twisted pod (twp)	rec	3
Dwarf-ism (le)	rec	3
Violet Spots on Seeds (F)	DOM	3
Brown Marbling Seeds (Maple) (M)	DOM	3
Pod-wall fiber gene #2 (v)	rec	4	P V normal parchmented pod; p V strip of sclerenchyma; P v inner membrane reduced to patches of sclerenchyma; p v entirely without parchment.
convex pods #2 (con)	rec	4
Snap-pod thicknes (n)	rec	4
“Crown Pea” (fa)	rec	4	Fasciated plants. Expression variable.
Flower number #2 (fna)	rec	4	Increasing number of flowers per inflorescence. Fn Fna is one-flowered; Fn fna and fn Fna two flowered; fn fna three-to several flowered. See also fna.
Violet-seeds (U)	DOM	5	Testa uniform violet, U, with violet stripes, U<st, non- violet, u. The colour of U varies from almost black to brownish.
Yellow-pods (gp)	rec	5	New growth, peduncles and sepals often yellowish so character may be discerned before pods develop.
Tendriless (tl)	rec	5	parsley pea with (af)
concave pods #1	rec	5
dehiscent pod #1	DOM	5
pointy pod tip (bt)	rec	5
wrinkled seeds (r)	rec	5
determinate (det)	rec	5
Constricted pods (cotr? Laf? Te?)	rec	5
Pod fiber gene #1 (p)	rec	6	P V normal parchmented pod; p V strip of sclerenchyma; P v inner membrane reduced to patches of sclerenchyma; p v entirely without parchment.
large pod (lt)	rec	6	Increases width of pod about 25%.
long pod / many seeds (canoe)	?	?
branching (ramosus)	rec	5,5,7,7,2,1,3

Pea Database Homepage

Pea Database Collaboration Project Homepage