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標題: 介紹一下變異草既眼 [打印本頁]

作者: 權強 時間: 2015-2-20 20:39
標題: 介紹一下變異草既眼
下面有四種唔同既變異草，每種既瞳孔都有唔同既顏色。
SPA:深紅眼

PA:葡萄眼

LA:啡紅眼

SP:普通黑眼

始終相片唔可以作準，但如果大家平時睇唔清隻眼係咩顏色既，建議大家較高電腦光亮度再用小畫家遂格睇，好多時會睇到意想不到既結果。

作者: billy815 時間: 2015-2-20 22:22
不過第三只頭花最靚喎

作者: herbalchung 時間: 2015-2-20 23:53
如果眼球無灰藍色嘅全白化, 同圖一交配的話,
會出正常定白化?

作者: 權強 時間: 2015-2-21 00:26
本帖最後由權強於 2015-2-21 00:43 編輯

herbalchung 發表於 2015-2-20 23:53
如果眼球無灰藍色嘅全白化, 同圖一交配的話,
會出正常定白化?

無灰藍色嘅全白化，我估你講緊t-。
我上面既係t+黎，所以如果t+ 同 t- 雜，唔會出得番t-。
有錯請改。

作者: 權強 時間: 2015-2-21 00:35

billy815 發表於 2015-2-20 22:22
不過第三只頭花最靚喎

第三只頭花係普通草都會見到。
但第二隻既頭花要係虎紋草先會見到，你如果仔細睇仲會睇到黃班外有一層透明色。
第一隻既頭花就只可以係二代虎紋SP，先見到。

作者: 權強 時間: 2015-2-21 00:47

herbalchung 發表於 2015-2-20 23:53
如果眼球無灰藍色嘅全白化, 同圖一交配的話,
會出正常定白化?

如果再要我估下，應該會出普通虎紋草。

我岩岩唸住PM 你再講，但唸唸下又怕教錯你，所以copy番出黎討論，有咩錯等堆高手出黎插下我，改番岩佢。

Here are some information about t+ and t-.
Actually no one(as least I haven't heard of any) has done any test on Mauremys reevesii to find out the enzymes responsible for so called"t+" albino. As a result, I can't firmly tell you what morph will exactly be coming out after mixing a SPA and a t- together. However, I can at least tell you t- won't be coming out. (Maybe t+ will also come out if the t- albino you have carry some t+ genes of the same kind(I don't know.)) However, if you buy 2 t+ from me, t+ babies will definitely hatch out from the eggs. If you get 2 t-. they will also give birth to t- babies.

Correct me if I am wrong.

The following paragraphs are copied from a thread.

Don't know if this will help, but I found this

Making melanin (black) pigment starts with the amino acid tyrosine. It goes through a dozen or so chemical changes before becoming melanin. Tyrosinase is the enzyme that catalyses the first two chemical changes. One gene carries the information for making tyrosinase. If the gene changes enough, the resulting enzyme can't do its job, and no melanin gets made. The changed gene has become a tyrosinase-negative albino mutant gene.

Some animals lack melanin but have normal tyrosinase. Then the mutant gene causing the lack is called the tyrosinase-positive albino mutant gene in spite of having nothing to do with tyrosinase. A better name would be the _____-negative mutant gene, where _____ is filled with the name of the defective enzyme. Unfortunately, we don't know the name of the defective enzyme, yet.

The Dopa Test is a biochemical test that determines whether a mutant gene is tyrosinase-negative or not. Information about it is in H.B. Bechtel's book, Amphibian and Reptile Variants.

Ideally, there is one tyrosinase-negative mutant gene and one tyrosinase-positive mutant gene. Too bad the real world does not conform to that ideal model.

In leopard geckos, there are three unrelated albino mutant genes. Nobody has done the Dopa Test on any of them. Not more than one of them can be the tyrosinase-negative mutant. Possibly none is the tyrosinase-negative mutant.

Albino black rat snakes, corn snakes, and some others have been tested with the Dopa Test. But many others, including albino boa constrictors and ball pythons, have not. In boa constrictors, there are two albino mutants, Kahl albino and Sharp albino. Both are called tyrosinase-negative mutants without any evidence. Only one can be the tyrosinase-negative mutant, but which? And possibly both are tyrosinase positive.

In boa constrictors and some other snakes, any mutant gene that reduces the amount of, but does not eliminate, the black pigment is called a tyrosinase-positive albino mutant gene. This adds several more unrelated mutants to the mixture.

作者: herbalchung 時間: 2015-2-21 01:16

權強發表於 2015-2-21 00:26
無灰藍色嘅全白化，我估你講緊t-。
我上面既係t+黎，所以如果t+ 同 t- 雜，唔會出得番t-。
有錯請改。 ...

師兄借你圖一用示意望勿介意圖內左右小圖亦網圖

我想講眼白位置, 有少少灰藍色(我感覺)同上左或上右小圖所出子代會紅眼嗎?

作者: 權強 時間: 2015-2-21 01:31

herbalchung 發表於 2015-2-21 01:16
師兄借你圖一用示意望勿介意圖內左右小圖亦網圖

未必會，因為上面既右邊係t-(左邊睇唔清。)。
而我隻SPA係t+，t-同t+配係多數出唔番紅眼(除非其中一隻有對方既隱性基因。)，亦都係有時你見大陸有人話佢用兩隻白化一齊配又出唔番白化既原因。
但係你如果兩隻都係t+或兩隻都係t-，就可以出番同款既紅眼。i.e. t+出番紅眼t+(好似我隻咁), t-出番紅眼t-(右上圖咁)。
所以回應番，你用SPA配右邊t-，應該出同時有t- [i.e.(t-/t+)]，又有我隻t+令到melanin製造過程中停左既gene既虎紋草(唔係普通草)。

如果你有睇開外國論壇先排有人嘈緊一個人隻t+ Sternotherus carinatus 係唔係真係紅眼，最後結論係影相影得差...... 所以睇相真係好難作準。(好似係FB既theturtleroom，唔肯定)

作者: herbalchung 時間: 2015-2-21 01:50

權強發表於 2015-2-21 01:31
未必會，因為上面既右邊係t-(左邊睇唔清。)。
而我隻SPA係t+，t-同t+配係多數出唔番紅眼(除非其中一隻有 ...

好清楚明白, 唔該哂師兄

作者: 肥仔 時間: 2015-2-22 01:48

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