Pea Database Collaboration Project/Pea Genetics

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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 pod fiber.png
Pea pod fiber2.png


Pea Traits Chromosome Table

Pea Traits by Chromosome Location
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

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