A Phylogenetic Analysis of Dioon (Zamiaceae)

Moretti, Antimo; Caputo, Paolo; Cozzolino, Serena; Luca, Paolo De; Gaudio, Luciano; Gigliano, G. Siniscalco; Stevenson, D. W.

doi:10.2307/2445041

Cited by 16 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3). This tree strongly supported the segregation of two main clades within Dioon, which was congruent with previous studies (Moretti et al, 1993;Gutiérrez-Ortega et al, 2017). The Spinulosum clade comprises the species from Eastern-Central America (ECA; D. mejiae) and two species from the most humid habitats of the MexGulf (Fig.…”

Section: Clustering Analysessupporting

confidence: 90%

“…Analysis was performed using a Maximum Likelihood (ML) search for 1000 rapid bootstraps under the GTR gamma model. The phylogenetic tree was visualized in Figtree v1.4 , and the root position was assigned in accordance with all previous phylogenetic studies on Dioon (Moretti et al, 1993;Nagalingum et al, 2011;Salas-Leiva et al, 2013;Condamine et al, 2015;Gutiérrez-Ortega et al, 2017).…”

Section: Phylogenetic Clusteringmentioning

confidence: 99%

See 1 more Smart Citation

The phylogeography of the cycad genus Dioon (Zamiaceae) clarifies its Cenozoic expansion and diversification in the Mexican transition zone

et al. 2017

View full text Add to dashboard Cite

The current genetic structure and species diversity of Dioon depict the history of expansion and diversification of the northernmost Neotropical provinces. Past biogeographic connectivities were favoured by elevated topographies, since mountain systems served as corridors for the migration of Dioon and as refugia of tropical communities that diversified during the formation of modern Neotropical forests.

show abstract

Section: Clustering Analysessupporting

confidence: 90%

Section: Phylogenetic Clusteringmentioning

confidence: 99%

The phylogeography of the cycad genus Dioon (Zamiaceae) clarifies its Cenozoic expansion and diversification in the Mexican transition zone

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In addition, some floristic and revisionary studies were reviewed (Zanoni and Adams 1979;Wiggins 1980;Zanoni 1982;Vovides et al 1983;Stevenson et al 1986;Patterson 1988;Espinosa 1991;McVaugh 1992;Zamudio 1992Zamudio , 2002Moretti et al 1993;Zamudio and Carranza 1994;Fonseca 1994;Farjon and Styles 1997;Medina and Dá vila 1997;Narave and Taylor 1997;Vovides 1999;Aguirre-Planter et al 2000;Felger 2000;ContrerasMedina et al 2001aContrerasMedina et al , 2003. Finally, in order to obtain field data and to make field observations of natural populations of some gymnosperm species, field exploration was carried out in the Mexican states of Hidalgo, Queré taro, Estado de Mé xico, Puebla, and Oaxaca.…”

Section: Methodsmentioning

confidence: 99%

Species richness, endemism and conservation of Mexican gymnosperms

Contreras-Medina

Luna‐Vega

2006

Biodivers Conserv

View full text Add to dashboard Cite

An analysis of the distribution patterns of 124 Mexican gymnosperm species was undertaken, in order to detect the Mexican areas with high species richness and endemism, and with this information to propose areas for conservation. Our study includes an analysis of species richness, endemism and distributional patterns of Mexican species of gymnosperms based on three different area units (states, biogeographic provinces and grid-cells of 1°· 1°latitude/longitude). The richest areas in species and endemism do not coincide; in this way, the Sierra Madre Oriental province, the state of Veracruz and a grid-cell located in the state of Oaxaca were the areas with the highest number of species, whereas the Golfo de Mé xico province, the state of Chiapas and a grid-cell located in this state were the richest areas in endemic species. A weighted endemism and corrected weighted endemism indices were calculated, and those grid-cells with high values in both indices and with high species richness were considered as hotspots; these grid-cells are mainly located in Southern and Central Mexico. Ó Springer Science+Business Media B.V. 2006Fig. 1 (a) The 32 Mexican states. Abbreviations are: AGS = Aguascalientes, BC = Baja California, BCS = Baja California Sur, CAMP = Campeche, CHIS = Chiapas, CHIH = Chihuahua, COA = Coahuila, COL = Colima, DF = Distrito Federal, DUR = Durango, GTO = Guanajuato, GRO = Guerrero, HGO = Hidalgo, JAL = Jalisco, MEX = Mé xico, MICH = Michoacá n, MOR = Morelos, NAY = Nayarit, NL = Nuevo. Leó n, OAX = Oaxaca, PUE = Puebla, QR = Quintana Roo, QRO = Queré taro, SLP = San Luis Potosí, SIN = Sinaloa, SON = Sonora, TAB = Tabasco, TAMP = Tamaulipas, TLA = Tlaxcala, VER = Veracruz, YUC = Yucatá n, ZAC = Zacatecas; (b) the 19 biogeographic provinces of Mexico according to Arriaga et al. (1997). Abbreviations are: apn = Altiplano Norte, aps = Altiplano Sur, bal = Depresió n del Balsas, bc = Baja California, clf = California, cab = Del Cabo, chi = Los Altos de Chiapas, gm = Golfo de Mé xico, nus = Soconusco, oax = Oaxaca, pac = Costa del Pacífico, ptn = Peté n, sme = Sierra Madre Oriental, smo = Sierra Madre Occidental, sms = Sierra Madre del Sur, son = Sonorense, tam = Tamaulipeca, vol = Eje Volcá nico, yuc = Yucatá n b

show abstract

“…Among the diverse flower visitors of sunflower at the research area, Insect pollinators comprise honeybees especially the commercial A. mellifera species was abundant and the most frequent pollinator of sunflower. It has been known to participate in its pollination with major share in flowers visitation and crop yield (Hoffman, 1994;Moretti et al, 1993). Nderitu et al (2008) reported 14 species visiting sunflower with maximum contribution of A. mellifera (Hymenoptera) followed by the Lepidopteron species.…”

Section: Discussionmentioning

confidence: 99%

Diversity of Sunflower Insect Pollinators and Their Foraging Behavior Under Field Conditions

Ahmad¹

2018

Uludağ Arıcılık Dergisi

View full text Add to dashboard Cite

To discover the pollinator community of sunflower (Helianthus annuus L.) and different aspects of behavior, activity and pollination effect of Apis and non Apis bees, an experiment was performed at the research farm of Arid Agriculture University, Rawalpindi, Pakistan. The insect pollinator community was composed of eighteen species belonging to seven families and three insect orders. Apis mellifera and Xylocopa fenestrata were the most frequent visitors comprising 44% and 14% with maximum activity observed during early day hours.Visitation frequency of these two pollinators significantly varied at early and late observation times with no significant differences observed during the mid-day. The study also covered other aspects including visitation rate and duration of a single visit on flower heads. These also contributed significantly in increase of head diameter, total number of seeds per head, filled seeds, seed filling percentage and seed weight when compared with self-pollination.Presence of wild pollinators with commercial bee keepers can help in increase of crop yields and their good seed potential due to improvement of crossing of gene pool. ÖZBu çalışma Pakistan, Rawalpindi Arid Tarım Üniversitesinde araştırma çiftliğinde yapılmıştır.Çalışmada Ayçiçeği (Helianthus annuus L.) bitkisinde tozlaştırıcıların, Apis ve Apis cinsine bağlı olmayan arıların farklı davranış, faaliyet ve tozlaşma üzerine etkilerinin araştırılması ve keşfedilmesi amaçlanmıştır.Burada sözkonusu böcek topluluğu 18 tür olarak 7 aileye ve üç takıma aittir.Apis mellifera ve Xylocopa fenestrate günün erken saatlerinde %44 ve %14 azami faaliyet gösteren ve en sık görülen ziyaretçilerdir. Gün ortasında ziyaret sıklığı önemli olmazken bu iki türün erken ve geç saatlerde ziyaret sıklığı önemli derecede değişmektedir. Bu çalışma aynı zamanda ziyaret seviyesine ve bir çiçek tablasında geçen zamanıda kapsamaktadır. Tüm bu bulgular kendine tozlaşma ile karşılaştırıldığında tabla çapını, tabladaki toplam tohum sayısı, dolu tohumlar, tohumların dolgunluk yüzdesi ve tohum ağırlığının önemli derecede artmasına katkı sağlamıştır. Ticari olarak çalışan arıcıların arılarının yanı sıra yabanı tozlaştırıcıların varlığı verimin ve gen havuzunun çapraz tozlaşma ile karışması sonucu iyi tohum potansiyelinin artmasına yardımcı olabilir.

show abstract

A Phylogenetic Analysis of Dioon (Zamiaceae)

Cited by 16 publications

References 0 publications

The phylogeography of the cycad genus Dioon (Zamiaceae) clarifies its Cenozoic expansion and diversification in the Mexican transition zone

The phylogeography of the cycad genus Dioon (Zamiaceae) clarifies its Cenozoic expansion and diversification in the Mexican transition zone

Species richness, endemism and conservation of Mexican gymnosperms

Diversity of Sunflower Insect Pollinators and Their Foraging Behavior Under Field Conditions

Contact Info

Product

Resources

About