Population differentiation and phylogeography in Lycianthes moziniana (Solanaceae: Capsiceae), a perennial herb endemic to the Mexican Transition Zone

2020 ◽  
Author(s):  
Marco Antonio Anguiano-Constante ◽  
Pilar Zamora-Tavares ◽  
Eduardo Ruiz-Sanchez ◽  
Ellen Dean ◽  
Aarón Rodríguez ◽  
...  
Keyword(s):  
Transition Zone ◽  
Volcanic Belt ◽  
Perennial Herb ◽  
Sierra Madre Occidental ◽  
Sierra Madre Oriental ◽  
Mexican Volcanic Belt ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Trans Mexican Volcanic Belt ◽  
Mexican Transition Zone

Abstract Lycianthes moziniana (Solanaceae: Capsiceae) is a perennial herb with edible fruits that is endemic to Mexico. Three varieties are recognized, all known in the Mexican Transition Zone. Lycianthes moziniana var. margaretiana grows in the Sierra Madre Oriental, whereas L. moziniana var. moziniana is common along the Trans-Mexican Volcanic Belt and in the Sierra Madre Occidental. Lycianthes moziniana var. oaxacana is found exclusively in the Sierra Madre del Sur. The Mexican Transition Zone is a complex geological, climatic and biogeographical area, the result of tectonic and volcanic activity that has promoted genetic divergence and speciation. We determined the genetic variation and structure of L. moziniana. Using phylogeographical approaches, we described the demographic history and evolutionary processes leading its divergence. The intergenic spacers rpl32-trnL and ycf1 were sequenced for 133 individuals pertaining to 15 populations. The genealogical relationships were analysed using haplotype networks. Finally, based on ecological niche models, we inferred the palaeodistribution of L. moziniana during the Pleistocene. The genetic differences and the haplogroups matched the three described varieties. Geological and climatic events of the Mexican Transition Zone facilitated these results. The Trans-Mexican Volcanic Belt isolated the populations of the Sierra Madre Oriental and the Sierra Madre del Sur, while allowing the migration to the Sierra Madre Occidental, during the middle Holocene.

Mexican biogeographic provinces: Map and shapefiles

Zootaxa ◽  
2017 ◽  
Vol 4277 (2) ◽  
pp. 277 ◽  
Author(s):  
JUAN J. MORRONE ◽  
TANIA ESCALANTE ◽  
GERARDO RODRÍGUEZ-TAPIA
Keyword(s):  
Transition Zone ◽  
Chihuahuan Desert ◽  
Volcanic Belt ◽  
Neotropical Region ◽  
Sierra Madre Occidental ◽  
Biogeographic Provinces ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Mexican Transition Zone ◽  
Nearctic Region

We provide a map of the 14 biogeographic provinces of Mexico based on the ecoregions recognized for the country, which combine climatic, geological and biotic criteria. These provinces belong to the Nearctic region (Californian, Baja Californian, Sonoran, Chihuahuan Desert and Tamaulipas provinces), Neotropical region (Pacific Lowlands, Balsas Basin, Veracruzan and Yucatán Peninsula provinces) and the Mexican transition zone (Sierra Madre Occidental, Sierra Madre Oriental, Transmexican Volcanic Belt, Sierra Madre del Sur and Chiapas Highlands provinces). In order to facilitate future biogeographic analyses, we provide a file of the biogeographical regionalisation of Mexico by converting the map into a polygon shapefile and a raster file with all provinces. We also separately provide each of the provinces in vector and raster format. All the maps are in geographical and Lambert Conformal Conic projections. 

A new species of Hystrichopsylla Taschenberg (Siphonaptera: Hystrichopsyllidae) from the Mexican transition zone

Zootaxa ◽  
2005 ◽  
Vol 1027 (1) ◽  
pp. 55 ◽  
Author(s):  
ROXANA ACOSTA ◽  
JUAN J. MORRONE
Keyword(s):  
New Species ◽  
Cladistic Analysis ◽  
Volcanic Belt ◽  
Species Group ◽  
Flea Species ◽  
Sierra Madre Oriental ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Species Groups ◽  
Mexican Transition Zone

A new flea species, Hystrichopsylla cryptotis, is described from the Sierra Madre Oriental and Sierra Madre del Sur, Mexico. The host of this new species is the shrew Cryptotis mexicana (Coues, 1877) (Mammalia: Soricidae). This flea species is easily recognized by its large size, seven genal combs, and the slender sternum IX, with 13 pairs of thick spiniform setae of different sizes. A key to the Mexican and Guatemalan species of Hystrichopsylla is given. The cladistic analysis indicates that Mexican species of Hystrichopsylla may be arranged in two different species groups: the H. orophila species group (H. orophila Barrera 1952 and H. cryptotis) and the H. dippiei species group (H. dippiei Rotshchild 1902, H. llorentei Ayala and Morales 1990, and H. kris Traub and Johnson 1952). The resolved area cladogram based on their phylogenetic relationships indicates the following relationships: (Sierra Madre Oriental, (Sierra Madre del Sur, Transmexican Volcanic Belt)).

The integration processes of the distributional patterns in the Mexican Transition Zone: Phyletic, paleogeographic and ecological factors of a case study

Zootaxa ◽  
2019 ◽  
Vol 4586 (1) ◽  
pp. 1 ◽  
Author(s):  
GONZALO HALFFTER ◽  
MARIO ZUNINO ◽  
VICTOR MOCTEZUMA ◽  
JOSÉ L. SÁNCHEZ-HUERTA
Keyword(s):  
Transition Zone ◽  
Ecological Factors ◽  
Volcanic Belt ◽  
Species Group ◽  
Climate Fluctuations ◽  
Geological Processes ◽  
Mexican Volcanic Belt ◽  
The Status ◽  
Trans Mexican Volcanic Belt ◽  
Mexican Transition Zone

In this study, we take the Onthophagus chevrolati species group, likely a monophyletic species group as an example to analyze the processes that led to the biogeographic integration of the Holarctic fauna in the mountains of the Mexican Transition Zone to test our biogeographic hypotheses. We propose a change from the status of subspecies to species for O. oaxacanus Zunino & Halffter, 1988 new status; O. howdeni Zunino & Halffter, 1988 new status; O. jaliscensis Zunino & Halffter, 1988 new status; O. longecarinatus Zunino & Halffter, 1988 new status; O. omiltemius Bates, 1889 revised status; and O. retusus Harold, 1869 revised status. Consequently, the O. chevrolati group of species is currently made up of 47 species belonging to four species lines: O. vespertilio, O. hippopotamus, O. cyanellus and O. chevrolati. The diversification of the Onthophagus chevrolati species group in this region resulted from three hypothetical stages of evolution. In the first, the penetration and expansion of the ancestor of the O. chevrolati species group occurred before the Miocene and the Trans-Mexican Volcanic Belt arose. During the second stage, the O. hippopotamus species line expanded and evolved, integrating with the paleogeographic changes and the formation of the Trans-Mexican Volcanic Belt, as a consequence of volcanism during the Miocene-Pliocene. In the third and most recent stage, the O. chevrolati species line used the existing mountain systems and interglacial climate fluctuations of the Pleistocene to expand and diversify. Thus, the mountains of the Mexican Transition Zone are not simply periglacial refugia. The entomofauna of Holarctic origin present in the region evolved while the Earth’s geological processes were underway. 

Analysing the assembly of cenocrons in the Mexican transition zone through a time-sliced cladistic biogeographic analysis

2016 ◽  
Vol 29 (6) ◽  
pp. 489 ◽  
Author(s):  
Violeta Corral-Rosas ◽  
Juan J. Morrone
Keyword(s):  
Transition Zone ◽  
Volcanic Belt ◽  
Neotropical Region ◽  
Ecological Processes ◽  
Sierra Madre ◽  
Close Relationship ◽  
Sierra Madre Del Sur ◽  
Relationship Of ◽  
Mexican Transition Zone ◽  
Nearctic Region

A transition zone shows the overlap between two or more regions and represents an event of biotic hybridisation, where different cenocrons assembled as a result of historical and ecological processes. The Mexican transition zone, the area where the Nearctic and Neotropical regions overlap, includes the following five biogeographical provinces: Sierra Madre Occidental, Sierra Madre Oriental, Sierra Madre del Sur, Transmexican Volcanic Belt and Chiapas Highlands. Within this transition zone, the following five cenocrons have already been recognised: Paleoamerican, Mexican Plateau, Mountain Mesoamerican, Nearctic and Typical Neotropical. We undertook three cladistic biogeographic analyses on the basis of 49 cladograms of terrestrial taxa, partitioning them into three time-slices, namely, Miocene (Mountain Mesoamerican cenocron), Pliocene (Mountain Mesoamerican plus Nearctic cenocrons) and Pleistocene (Mountain Mesoamerican, Nearctic and Typical Neotropical cenocrons). For the Miocene time-slice, we observed a close relationship of the Transmexican Volcanic Belt with the Neotropical region, whereas, for the Pliocene and Pleistocene time-slices, the closest relationship of the Transmexican Volcanic Belt was with the Nearctic region. We conclude that the Transmexican Volcanic Belt may have played a different role according to the cenocron analysed, and that the Mexican transition zone differs in its delimitation depending on the taxa analysed, strengthening the idea that it is a complex area.

Testing the biogeographical regionalization of the Mexican Transition Zone based on the distribution of Curculionidae (Insecta: Coleoptera)

Zootaxa ◽  
2018 ◽  
Vol 4530 (1) ◽  
pp. 1
Author(s):  
PATRICIA G. GARCÍA-NAVARRETE ◽  
JUAN J. MORRONE
Keyword(s):  
Transition Zone ◽  
Volcanic Belt ◽  
Entire Area ◽  
Independent Analysis ◽  
Sierra Madre ◽  
The Family ◽  
Third Stage ◽  
Sierra Madre Del Sur ◽  
Mexican Transition Zone ◽  
The Relationship

A test of the biogeographical regionalization of the Mexican Transition Zone (MTZ) is presented, resulting from a Parsimony Analysis of Endemicity (PAE) based on the distributional patterns of 575 species of the family Curculionidae. The analysis was carried out in three stages. First, a PAE was carried out to define a general regionalization scheme for the MTZ, identifying areas and microareas of endemism for the entire area. Then PAEs were undertaken for each province. Third, a PAE was carried out to determine the relationship between the provinces of the MTZ. The analysis of the entire MTZ resulted in four areas and 57 microareas of endemism, while in the independent analysis of each province, five areas and 67 microareas of endemism were obtained. Both analyses coincide basically in the location of the areas and microareas of endemism, which are subordinated to biogeographic units defined by different authors. In the consensus cladogram of the third stage of the analysis, the Transmexican Volcanic Belt (TVB) is the sister area to the Sierra Madre Occidental (SMOC); then, they are the sister area to the Sierra Madre Oriental (SMOR); and finally the previous provinces are united in a trichotomy with the Sierra Madre del Sur (SMS) and the Chiapas Highlands (CHIS). It is assumed that the differences found when comparing our results with different cladistic biogeographic studies of the MTZ reflect the complexity of the study area. Since the data used to perform the analyses are not uniform, and both geographical units and taxa are different, the comparison between different analyses is difficult. 

The Sierra de Mil Cumbres, Michoacán, México: Transitional volcanism between the Sierra Madre Occidental and the Trans-Mexican Volcanic Belt

2015 ◽  
Vol 301 ◽  
pp. 128-147 ◽  
Author(s):  
Martha Gabriela Gómez‐Vasconcelos ◽  
Víctor Hugo Garduño‐Monroy ◽  
José Luis Macías ◽  
Paul W. Layer ◽  
Jeff A. Benowitz
Keyword(s):  
Volcanic Belt ◽  
Sierra Madre Occidental ◽  
Mexican Volcanic Belt ◽  
Sierra Madre ◽  
Trans Mexican Volcanic Belt

Cunila socorroae (Lamiaceae) a new species from Sierra Madre Occidental, Durango, Mexico

Phytotaxa ◽  
2020 ◽  
Vol 453 (1) ◽  
pp. 31-42
Author(s):  
MARÍA DEL ROSARIO GARCÍA-PEÑA ◽  
JESÚS GUADALUPE GONZÁLEZ-GALLEGOS
Keyword(s):  
New Species ◽  
Chihuahuan Desert ◽  
Volcanic Belt ◽  
Corolla Tube ◽  
Sierra Madre Occidental ◽  
Sierra Madre ◽  
Sierra Madre Del Sur ◽  
Additional Support ◽  
Floral Bracts ◽  
A New Species

Recent botanical explorations in Durango, Mexico, led to the discovery of a new species endemic to this state: Cunila socorroae (Lamiaceae), which is consequently here described and illustrated. The new species is morphologically most similar to C. jaliscana and C. lythrifolia. It can be distinguished from both in having less flowers per cyme, lanceolate floral bracts, longer calyx tube, and lanceolate calyx teeth and longer. It also deviates from C. jaliscana by the fewer floral internodes, longer floral bract, and generally longer corolla tube. Also, the exfoliating bark, white corollas and internally pubescent, make a clear distinction against C. lythrifolia. The distinctive geographic distribution of these species is an additional support to their separation; the new species is exclusive of the middle portion of Sierra Madre Occidental, whereas C. jaliscana is restricted to the northernmost portion of Sierra Madre del Sur, and C. lythrifolia, though mostly occurs in eastern Tans-Mexican Volcanic Belt, has also some localities in southern Chihuahuan Desert, Sierra Madre Oriental and Sierra Madre del Sur.

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