Erratum: Morphological and molecular evidence of natural interspecific hybridization in the diploid potato Solanum kurtzianum from Argentina

Botany ◽  
2009 ◽  
Vol 87 (2) ◽  
pp. 222-222 ◽  
Author(s):  
María Cecilia Bedogni ◽  
Elsa Lucila Camadro
Keyword(s):  
Interspecific Hybridization ◽  
Molecular Evidence ◽  
Diploid Potato ◽  
Solanum Kurtzianum

Morphological and molecular evidence of natural interspecific hybridization in the diploid potato Solanum kurtzianum from Argentina

Botany ◽  
2009 ◽  
Vol 87 (1) ◽  
pp. 78-87 ◽  
Author(s):  
María Cecilia Bedonni ◽  
Elsa Lucila Camadro
Keyword(s):  
Interspecific Hybridization ◽  
Solanum Tuberosum L ◽  
A Priori ◽  
Diploid Species ◽  
Morphological Plasticity ◽  
Solanum Chacoense ◽  
Breeding Value ◽  
Interspecific Crosses ◽  
Molecular Evidence ◽  
Solanum Kurtzianum

The common potato, Solanum tuberosum L. subsp. tuberosum , is a tetrasomic tetraploid. This subspecies has approximately 220 related tuber-bearing species that constitute a genetic pool of enormous breeding value. The diploid species Solanum kurtzianum Bitter et Wittm., described as resistant to drought and nematodes, grows in northwestern and western Argentina and can naturally hybridize with the related diploids Solanum chacoense Bitter, Solanum spegazzinii Bitter, and Solanum maglia Schltdl., in areas of sympatry. In this species, the variability for morphological phenotypes and pollen–pistil relations in intra- and interspecific crosses is large. To investigate whether S. kurtzianum accessions available at the Germplasm Bank in Argentina belong to one taxon with great morphological plasticity or are hybrid and (or) segregant populations, these and accessions of the other three species were characterized using morphological and molecular (SSR) markers. Data were statistically analyzed with ANOVAs and AMOVA. With univariate ANOVA, only 11 characters out of 33 evaluated were statistically significant among species. With multivariate analyses, the grouping did not reflect a priori taxonomic assignments; when population averages were used, a tendency was observed towards grouping by geographical origin. With the AMOVA, only individuals within accessions were separated. Interspecific hybridization and introgression in areas of sympatry can explain these results.

Molecular Evidence Suggesting Interspecific Hybridization in Zoanthus spp. (Anthozoa: Hexacorallia)

2007 ◽  
Vol 24 (4) ◽  
pp. 346-359 ◽  
Author(s):  
James Davis Reimer ◽  
Kiyotaka Takishita ◽  
Shusuke Ono ◽  
Junzo Tsukahara ◽  
Tadashi Maruyama
Keyword(s):  
Interspecific Hybridization ◽  
Molecular Evidence

scholarly journals Molecular evidence and ecological niche modeling reveal an extensive hybrid zone among three Bursera species (section Bullockia)

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0260382
Author(s):  
Eduardo Quintero Melecio ◽  
Yessica Rico ◽  
Andrés Lira Noriega ◽  
Antonio González Rodríguez
Keyword(s):  
Interspecific Hybridization ◽  
Hybrid Zone ◽  
Dna Sequences ◽  
Ecological Niche ◽  
Ecological Niche Modeling ◽  
Molecular Data ◽  
Niche Modeling ◽  
Hybrid Origin ◽  
Putative Hybrid ◽  
Molecular Evidence

The genus Bursera, includes ~100 shrub and trees species in tropical dry forests with its center of diversification and endemism in Mexico. Morphologically intermediate individuals have commonly been observed in Mexican Bursera in areas where closely related species coexist. These individuals are assumed to result from interspecific hybridization, but no molecular evidence has supported their hybrid origins. This study aimed to investigate the existence of interspecific hybridization among three Mexican Bursera species (Bullockia section: B. cuneata, B. palmeri and B. bipinnata) from nine populations based on DNA sequences (three nuclear and four chloroplast regions) and ecological niche modeling for three past and two future scenario projections. Results from the only two polymorphic nuclear regions (PEPC, ETS) supported the hybrid origin of morphologically intermediate individuals and revealed that B. cuneata and B. bipinnata are the parental species that are genetically closer to the putative hybrids. Ecological niche modeling accurately predicted the occurrence of putative hybrid populations and showed a potential hybrid zone extending in a larger area (74,000 km2) than previously thought. Paleo-reconstructions showed a potential hybrid zone existing from the Last Glacial Maximum (~ 21 kya) that has increased since the late Holocene to the present. Future ecological niche projections show an increment of suitability of the potential hybrid zone for 2050 and 2070 relative to the present. Hybrid zone changes responded mostly to an increase in elevational ranges. Our study provides the first insight of an extensive hybrid zone among three Mexican Bursera species based on molecular data and ecological niche modeling.

Direct molecular evidence for the expression of the 5-HT4 receptor in rat colonocytes

2001 ◽  
Vol 120 (5) ◽  
pp. A171-A171
Author(s):  
M STONER ◽  
D YAGER ◽  
J KELLUM
Keyword(s):  
Molecular Evidence

A new species of Contomastix (Squamata, Teiidae) supported by total evidence, with remarks on diagnostic characters defining the genus

2019 ◽  
pp. 23-36
Author(s):  
Mario. R. Cabrera
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Phylogenetic Reconstruction ◽  
Total Evidence ◽  
Molecular Evidence ◽  
Proximal Margin ◽  
Diagnostic Characters ◽  
Morphological Differences ◽  
A New Species ◽  
Molecular Characters

Formerly Cnemidophorus was thought to be the most speciose genus of Teiidae. This genus comprised four morphological groups that were later defined as four different genera, Ameivula, Aurivela, Cnemidophorus and Contomastix. The last appears as paraphyletic in a recent phylogenetic reconstruction based on morphology, but monophyletic in a reconstruction using molecular characters. Six species are allocated to Contomastix. One of them, C. lacertoides, having an extensive and disjunct geographic distribution in Argentina, Uruguay and Brazil. Preliminary analyses revealed morphological differences among its populations, suggesting that it is actually a complex of species. Here, we describe a new species corresponding to the Argentinian populations hitherto regarded as C. lacertoides, by integrating morphological and molecular evidence. Furthermore, we demonstrate that the presence of notched proximal margin of the tongue is a character that defines the genus Contomastix.

Molecular evidence of osteoblast dysfunction in elderly men with osteoporotic hip fractures

2014 ◽  
Author(s):  
Ursula Foger-Samwald ◽  
Alaghebandan Afarin ◽  
Janina Patsch ◽  
Doris Schamall ◽  
Sylvia Salem ◽  
...  
Keyword(s):  
Hip Fractures ◽  
Molecular Evidence ◽  
Elderly Men
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