Wednesday, January 17, 2018

Pea Genes, if you peas...

Two cool new 'Pea Things' have revealed themselves in my garden.
Let me introduce you:

Sugar Magnolia Tendril Pea

This is a Sugar Magnolia Tendril Pea. I'll just call him Magnolia for now, because his official title is a mouthful and SMTP doesn't roll off the tongue either.

This is my first year growing Magnolia. They're pretty fun. They're a hyper tendril pea, which means they stick out  a crazy, almost disconcerting amount of grippy-grabby tendrils lacking leaves. They start like this...

Sugar Magnolia Tendril Pea - Tendrils
HI.

Then they grab stuff...

Sugar Magnolia Tendril Pea - Tendrils
MINE.

.... then more stuff, until they turn into little fists and punch each other while trying to grab more stuff.

Sugar Magnolia Tendril Pea - Tendrils
MINE MINE MINE MINE MINE
They also have quite pretty flowers:

Sugar Magnolia Tendril Pea - Flower
I'm pretty.

They have purple flushed pods, though I don't have any photos since mine are just starting to flower. But all in, that's what a typical Magnolia pea is supposed to look like.

Now... check out this Dude.

Sugar Magnolia Tendril Pea - Parsley Pea Rogue
I really want to nickname it the "Lilliputian Leaves" pea but, alas, after a bit of research I discovered it already has a name: Parsley Pea.

(booo... fine.)

Here are few more pictures -- though my phone is obsessed with dirt and refuses to focus its attention elsewhere without some literal handling. 




So... what is a Parsley Pea and how did it get in with my Magnolias? Genetics time.

Now, if you know nothing about pea genes (but want to!) here's a fantastic link: Andrew's Blog - Following in Mendel's Footsteps. (I'm familiar with Andrew and his work on peas from the fantastic forum: Homegrown Goodness. If I haven't posted on my blog in a while, this is probably where you'll find me! It's definitely one of the best in-depth resources for anyone looking to know more about the vegetables that they're growing, and all the fascinating genes behind them.)

In a nutshell, the Magnolia type hyper tendril peas occurs when you outcross a Parsley pea with a regular pea. Though I haven't discovered how many genes are involved (still doing research!) it appears that within the Magnolia gene pool there are still enough recessives to occasionally unite and, with their powers combined, throw a Parsley pea.

Of the 30 or so Magnolia seeds I planted, two are growing like Parsley peas. And while they are very cool to look at, there are a few downfalls.

Firstly, since every tendril terminates in a leaf, the Parsley pea has no 'grabby hands.' Though mine may appear to be climbing, they are in fact just swept up in the arms of their neighbor Magnolias, being cradled and carried aloft. Ooo la la, how romantic.

Secondly, research has shown that the pea yield from Parsley peas tends to be very low, and much later in the season than Magnolia or other traditional varieties.

Regardless, a very interesting pop-up in this batch of Magnolia, and something I'm looking forward to saving seed from later in the season! Who knows, maybe they'll have purple flushed pods, too. We can only wait and see ~


OK< NEXT PEA


Second on today's agenda, a pea that caused a minor stir on this Homegrown Goodness thread earlier this week.
(spoiler alert: mostly unwarranted)

Cascadia Rogue - Sport - Accidental Cross (red and white flowered)

What's this red and white flower doing in my patch of Cascadia, which normally have all white flowers? Great question. Even stranger, when I posted an inquiry on the forum, a few people (remember Andrew, from above?) were genuinely surprised at the color arrangement. They'd never seen it before.

And while the good folks at Homegrown Goodness haven't seen everything, they sure have seen a lot.

Curious.

Remember the pink/purple colored flower from the Magnolia section? That type of coloration is quite common in peas. However, the particular and distinct division between red & white on the flower above was not something anyone on the forum had seen before. Also, see the slight red pigment where the leaves connect to the stem? That is also not traditionally present on the heirloom Cascadia plants (though you will notice, both the Magnolia and Parsley peas have it).

So over the next few days, I took photos and kept track of the flowers progress. It went a little something like this:

Flower Color Evolution of the Cascadia Rogue - Sport - Accidental Cross

Interestingly, as the days went on the red & white flower turned more and more traditionally purple. The yellow spots indicate a different blossom on the same plant. I followed its progress closely, so see if it would open up red and white, like the first one, or go straight to a more traditional pink/purple.

Cascadia Rogue - Sport - Accidental Cross (first flower bottom, second flower top)

Traditional pink/purple it was! The top blossom is the same as the one with the yellow spot next to it in the previous graphic. The darker purple one below is the original flower, that has begun to dry up and shed. If talking this subject has interested you, you can also check out this LINK for another short overview of the genetics behind purple flowers.

Now, why the first blossom looked so different and unique to anything we'd seen before remains a mystery.

But I have do a theory...


...wait, wrong theory.

Daylight. On Monday and Tuesday of two weeks ago, we had a crazy 48 rainstorm and extremely heavy cloud cover. The next day, the first blossom opened. It was overcast that day too. However, on Thursday, Friday, and Saturday the sun came back in full force.

I suspect that, like some tomatoes that turn purple when exposed to light (while the shaded ones remain red), the first blossom remained such a distinct red color due to a lack of sunlight exposure on that first day.

The second blossom, which emerged pink/purple, did so during several days of heat and bright sun.

Perhaps this is the cause of the unusual red & white color? But what it doesn't help to explain is how colored genetics ended up in my white flowered gene pool of Cascadia. Since white flowers are recessive, the most likely cause is an accidental cross that happened at the seed farm (since all my Cascadia seeds this season came straight out of a packet).

Another strange arrival this week at the Shandy Dandy that I will definitely be keeping an eye on (and saving seeds from) in the near future!

In the meantime, this colored little Cascadia still needs a nickname. Thoughts?

-----

PS. It took me a few days to write/compile this post, and in the meantime the original red & white flower has started forming a pod.

Cascadia Rogue - Sport - Accidental Cross Pod


Happy Planting!

No comments:

Post a Comment

POSTING A COMMENT? You're awesome. I may not reply to every comment, but I do read them all! Sometimes I forget, or I have to prioritize posting new content if I'm on a time crunch. Or I may save my reply so I can address your question/comment in a future post.

Trolls will be thrown in the compost.

HAVE A WONDERFUL DAY!