Limits...
A Homoploid Hybrid Between Wild Vigna Species Found in a Limestone Karst.

Takahashi Y, Iseki K, Kitazawa K, Muto C, Somta P, Irie K, Naito K, Tomooka N - Front Plant Sci (2015)

Bottom Line: Genus Vigna comprise several domesticated species including cowpea and mungbean, and diverse wild species.We found an introgressive hybrid population derived from two wild species, Vigna umbellata and Vigna exilis, in Ratchaburi district, Thailand.We found the hybrid acquired vigorous growth from V. umbellata and drought tolerance plus early flowering from V. exilis, and thus has taken over some habitats of V. exilis in limestone karsts.

View Article: PubMed Central - PubMed

Affiliation: Genetic Resources Center, National Institute of Agrobiological Sciences Tsukuba, Japan.

ABSTRACT
Genus Vigna comprise several domesticated species including cowpea and mungbean, and diverse wild species. We found an introgressive hybrid population derived from two wild species, Vigna umbellata and Vigna exilis, in Ratchaburi district, Thailand. The hybrid was morphologically similar to V. umbellata but habituated in a limestone rock mountain, which is usually dominated by V. exilis. Analyzing simple sequence repeat loci indicated the hybrid has undergone at least one round of backcross by V. umbellata. We found the hybrid acquired vigorous growth from V. umbellata and drought tolerance plus early flowering from V. exilis, and thus has taken over some habitats of V. exilis in limestone karsts. Given the wide crossability of V. umbellata, the hybrid can be a valuable genetic resource to improve drought tolerance of some domesticated species.

No MeSH data available.


Related in: MedlinePlus

The effect of high pH on V. umbellata, V. exilis, and the unidentified accession. The y-axis indicates relative dry weight of the above-ground parts (A) and the roots (B) against control condition (pH6). No significant difference was observed between the three according to multiple comparison test by Turkey's range test.
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Figure 4: The effect of high pH on V. umbellata, V. exilis, and the unidentified accession. The y-axis indicates relative dry weight of the above-ground parts (A) and the roots (B) against control condition (pH6). No significant difference was observed between the three according to multiple comparison test by Turkey's range test.

Mentions: To test one hypothesis that the adaptive trait of V. exilis and the unidentified accession to the limestone environment was alkaline tolerance, we cultivated the plants of V. umbellata, V. exilis, and an unidentified accession in conditions of pH6, pH8, pH10, or pH12 for 14 days. To evaluate the growth rate, we harvested and measured dry weight of above-ground parts and roots (Figure 4).


A Homoploid Hybrid Between Wild Vigna Species Found in a Limestone Karst.

Takahashi Y, Iseki K, Kitazawa K, Muto C, Somta P, Irie K, Naito K, Tomooka N - Front Plant Sci (2015)

The effect of high pH on V. umbellata, V. exilis, and the unidentified accession. The y-axis indicates relative dry weight of the above-ground parts (A) and the roots (B) against control condition (pH6). No significant difference was observed between the three according to multiple comparison test by Turkey's range test.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4664699&req=5

Figure 4: The effect of high pH on V. umbellata, V. exilis, and the unidentified accession. The y-axis indicates relative dry weight of the above-ground parts (A) and the roots (B) against control condition (pH6). No significant difference was observed between the three according to multiple comparison test by Turkey's range test.
Mentions: To test one hypothesis that the adaptive trait of V. exilis and the unidentified accession to the limestone environment was alkaline tolerance, we cultivated the plants of V. umbellata, V. exilis, and an unidentified accession in conditions of pH6, pH8, pH10, or pH12 for 14 days. To evaluate the growth rate, we harvested and measured dry weight of above-ground parts and roots (Figure 4).

Bottom Line: Genus Vigna comprise several domesticated species including cowpea and mungbean, and diverse wild species.We found an introgressive hybrid population derived from two wild species, Vigna umbellata and Vigna exilis, in Ratchaburi district, Thailand.We found the hybrid acquired vigorous growth from V. umbellata and drought tolerance plus early flowering from V. exilis, and thus has taken over some habitats of V. exilis in limestone karsts.

View Article: PubMed Central - PubMed

Affiliation: Genetic Resources Center, National Institute of Agrobiological Sciences Tsukuba, Japan.

ABSTRACT
Genus Vigna comprise several domesticated species including cowpea and mungbean, and diverse wild species. We found an introgressive hybrid population derived from two wild species, Vigna umbellata and Vigna exilis, in Ratchaburi district, Thailand. The hybrid was morphologically similar to V. umbellata but habituated in a limestone rock mountain, which is usually dominated by V. exilis. Analyzing simple sequence repeat loci indicated the hybrid has undergone at least one round of backcross by V. umbellata. We found the hybrid acquired vigorous growth from V. umbellata and drought tolerance plus early flowering from V. exilis, and thus has taken over some habitats of V. exilis in limestone karsts. Given the wide crossability of V. umbellata, the hybrid can be a valuable genetic resource to improve drought tolerance of some domesticated species.

No MeSH data available.


Related in: MedlinePlus