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- Q15298386 subject Q22044911.
- Q15298386 subject Q8461899.
- Q15298386 subject Q8765339.
- Q15298386 subject Q8807597.
- Q15298386 abstract "Cucurbita texana, also known as Cucurbita pepo subsp. texana and Texas gourd, is a mesophyte plant species of the genus Cucurbita. It is native to Texas, primarily the southeastern region. It is only found in the wild. It is possibly a progenitor and close relative of the domesticated species Cucurbita pepo, though it and wild C. pepo are native to different areas. Cucurbita fraterna is also closely related. It was first collected 1835 by J. L. Berlandier in southern Texas. It was formally described as Tristemon texanus by George Heinrich Adolf Scheele in 1848 and transferred to the genus Cucurbita by Asa Gray in 1850.Its usual habitat is in or near sandy riverbeds.The debate about the relationship of C. pepo, C. fraterna, and C. texana has been going on since at least 1857. C. pepo has more similarities to C. fraterna than it does to C. texana which is also claimed to be an ancestor of C. pepo. The isozymes of C. pepo and C. fraterna are very similar. C. fraterna shares alleles with C. pepo at all 25 studied loci, indicating C. fraterna is the nearest relative of C. pepo. C. pepo is most likely an early domesticated form of C. fraterna. It crosses well with both C. pepo and C. texana. C. pepo could be a compilospecies of C. fraterna and C. texana, which appear to be two species that were originally separate. Based on genetic allele analysis, there are two distinct groups within C. pepo: pumpkin, calabaza, criolla, and marrow squash are in one, and ornamental gourds, crookneck squash, acorn squash, pattypan squash, and a few others are in the other. C. fraterna is genetically closer to the first group and C. texana is genetically closer to the second group. No obvious constraints to gene flow between C. texana and C. pepo cultivars have been observed, regardless of which was the male or female parent; there is a distinct lack of reproductive isolation. However, the early origins of C. pepo in Mexico are well documented.".
- Q15298386 thumbnail Cucurbita_texana_7.jpg?width=300.
- Q15298386 wikiPageWikiLink Q106227.
- Q15298386 wikiPageWikiLink Q1361864.
- Q15298386 wikiPageWikiLink Q143089.
- Q15298386 wikiPageWikiLink Q1439.
- Q15298386 wikiPageWikiLink Q15533538.
- Q15298386 wikiPageWikiLink Q165308.
- Q15298386 wikiPageWikiLink Q16950697.
- Q15298386 wikiPageWikiLink Q1922484.
- Q15298386 wikiPageWikiLink Q22044911.
- Q15298386 wikiPageWikiLink Q2975815.
- Q15298386 wikiPageWikiLink Q347356.
- Q15298386 wikiPageWikiLink Q407801.
- Q15298386 wikiPageWikiLink Q4522370.
- Q15298386 wikiPageWikiLink Q5339301.
- Q15298386 wikiPageWikiLink Q5347761.
- Q15298386 wikiPageWikiLink Q5622397.
- Q15298386 wikiPageWikiLink Q572872.
- Q15298386 wikiPageWikiLink Q6632688.
- Q15298386 wikiPageWikiLink Q7229863.
- Q15298386 wikiPageWikiLink Q80726.
- Q15298386 wikiPageWikiLink Q8461899.
- Q15298386 wikiPageWikiLink Q8765339.
- Q15298386 wikiPageWikiLink Q876892.
- Q15298386 wikiPageWikiLink Q8807597.
- Q15298386 comment "Cucurbita texana, also known as Cucurbita pepo subsp. texana and Texas gourd, is a mesophyte plant species of the genus Cucurbita. It is native to Texas, primarily the southeastern region. It is only found in the wild. It is possibly a progenitor and close relative of the domesticated species Cucurbita pepo, though it and wild C. pepo are native to different areas. Cucurbita fraterna is also closely related. It was first collected 1835 by J. L. Berlandier in southern Texas.".
- Q15298386 label "Cucurbita texana".
- Q15298386 depiction Cucurbita_texana_7.jpg.