Virgin BP laid 6 eggs!

Hope they hatch! Good luck!

I'll keep everyone updated. Thanks for the responses!

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Originally Posted by brettfong

just to chime in, technically they could not be exact clones of the female! Hope they hatch

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False. Partho is a direct copy of the DNA found within the female (clone, copy, etc.). This includes variability in pattern, and other characteristics. It would require a random mutation for a partha to not be genetically identical to the mother. In all cases, the resulting offspring will all be female.

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Originally Posted by reptileexperts

False. Partho is a direct copy of the DNA found within the female (clone, copy, etc.). This includes variability in pattern, and other characteristics. It would require a random mutation for a partha to not be genetically identical to the mother. In all cases, the resulting offspring will all be female.

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False, actually. Because when the cells that create ovum are copying themselves, the chromosomes will swap around bits in their pairs, resulting in variation. Also, the female will produce males because in snakes, males are the ones with homozygous sex chromosomes, unlike in mammals. In fact, they mostly produce males because the WW (female sex chromosome) is usually not viable. ZZ is viable (male) and ZW (female)

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Originally Posted by Spiritserpents

False, actually. Because when the cells that create ovum are copying themselves, the chromosomes will swap around bits in their pairs, resulting in variation. Also, the female will produce males because in snakes, males are the ones with homozygous sex chromosomes, unlike in mammals. In fact, they mostly produce males because the WW (female sex chromosome) is usually not viable. ZZ is viable (male) and ZW (female)

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'Mechanisms that result in completely homozygous individuals are excluded as the mechanism of parthenogenesis in the Burmese python, because there is no segregation of sex chromosomes and AFLP makers in the offspring: all offspring are female (ZW) and have identical AFLP fingerprints. Three other mechanisms, viz., central fusion, premeiotic doubling, and fusion of the first polar nucleus with the nucleus of the secondary oocyte, are all expected to result in offspring that are genetically identical to the mother. Cytological studies should allow distinction between these three mechanisms."

http://www.nature.com/hdy/journal/v9.../6800210a.html

Molecular genetic evidence for parthenogenesis in the Burmese python, Python molurus bivittatus

T V M Groot1, E Bruins2 and J A J Breeuwer1
2003

If you are going to dispute me. Please have evidence. You are incorrect. I will not go call my university for a refund on my degree now. . . that was a close one . . .

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Originally Posted by reptileexperts

False. Partho is a direct copy of the DNA found within the female (clone, copy, etc.). This includes variability in pattern, and other characteristics. It would require a random mutation for a partha to not be genetically identical to the mother. In all cases, the resulting offspring will all be female.

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sorry! just thought there is still some chance that the offspring could not be full clones but maybe half clones with most alleles similar to the mother but still forming a diploid offspring

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Originally Posted by Scirlygirl

^which is a type of asexual reproduction as mentioned earlier in the thread....


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Double checked and you're right. I had my terminology wrong. Thank you for correcting me.

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Originally Posted by reptileexperts

False. Partho is a direct copy of the DNA found within the female (clone, copy, etc.). This includes variability in pattern, and other characteristics. It would require a random mutation for a partha to not be genetically identical to the mother. In all cases, the resulting offspring will all be female.

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This is correct.

http://rsbl.royalsocietypublishing.o...7-a8a03c101bd2

To quote from this scientific article detailing instances of parthenogenesis in pit vipers...

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. In caenophidian snakes, a derived clade containing most of the extant species[18], FP results in the production of unusually small litters that are composed entirely of males with low offspring viability and large numbers of developmental failures [6,7,10].

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We are actually both correct on the genders to a degree. MOST snake species produce all males during parthenogenesis (unless obligates), but apparently the boids like to produce all females.

Very interesting thread.


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