Results 41 to 50 of about 1,583 (196)

Widespread male sterility and trioecy in androdioecious Mercurialis annua: Its distribution, genetic basis, and estimates of morph-specific fitness components. [PDF]

Am J Bot
Abstract Premise Angiosperms range in sexual system from hermaphroditism through gynodioecy and androdioecy to dioecy. Trioecy, where females and males coexist with hermaphrodites, is rare. Recently, trioecy was documented in hexaploid populations of the wind‐pollinated herb Mercurialis annua in Spain.
Nguyen MT, Martignier T, Pannell JR.
europepmc   +2 more sources

Mating system of Pachycereus pringlei: an autotetraploid cactus [PDF]

Heredity, 1994
The mating system of the Mexican subdioecious columnar cactus, Pachycereus pringlei (Cardon), was examined by allozyme analysis. Tetrasomic patterns of inheritance were found for all polymorphic loci, indicating that the species is an autotetraploid.
Darlyne A Murawski, Theodore H Fleming, Kermit Ritland, J L Hamrick   +3 more
openaire   +1 more source

Asynchronous flowering patterns in saguaro cacti (Carnegiea gigantea)

Ecosphere, Volume 12, Issue 12, December 2021., 2021
Abstract The saguaro cactus (Carnegiea gigantea [Engelm.] Britton & Rose) is a keystone species endemic to the Sonoran Desert of northern Mexico and the southwestern United States. The saguaro produces large white flowers near its stem apex (crown) during April–June, which bloom at night and close the following day.
Theresa Foley, Don E. Swann, Guadalupe Sotelo, Nicholas Perkins, Daniel E. Winkler   +4 more
wiley   +1 more source

Human food use increases plant geographical ranges in the Sonoran Desert

Global Ecology and Biogeography, Volume 30, Issue 7, Page 1461-1473, July 2021., 2021
Abstract Aim Climate is usually regarded as the main determinant of plant species distributions. However, past human use of species for food might also have influenced distributions. We hypothesized that human‐mediated dispersal has resulted in food plants occupying more of their potential geographical range.
Carolyn Flower, Wendy C. Hodgson, Andrew M. Salywon, Brian S. Maitner, Brian J. Enquist, Matthew A. Peeples, Benjamin Blonder, Sandra Nogué   +7 more
wiley   +1 more source

High proportion of cactus species threatened with extinction [PDF]

, 2015
This is the author accepted manuscript. The final version is available from Nature Publishing Group via the DOI in this record.Consejo Nacional de Ciencia y ...
Abba, AM, Arias, S, Arreola-Nava, HJ, Baker, MA, Barcenas, RT, Barrios, D, Braun, P, Burquez, A, Butterworth, CA, Caceres, F, Chazaro-Basanez, M, Corral-Diaz, R, Cruz-Pinon, G, del Valle Perea, M, Demaio, PH, Duarte de Barros, WA, Duffy, James P., Duran, R, Faundez Yancas, L, Felger, RS, Fitz-Maurice, B, Fitz-Maurice, WA, Frances, A, Gann, G, Gaston, Kevin J., Goettsch, B, Gomez-Hinostrosa, C, Griffith, MP, Guerrero, PC, Hammel, B, Heil, KD, Hernandez, HM, Hernandez-Oria, JG, Hilton-Taylor, C, Hoffmann, M, Inger, Richard, Ishiki Ishihara, M, Kiesling, R, Larocca, J, Leon-de la Luz, JL, Loaiza S, CR, Lowry, M, Machado, MC, Majure, LC, Martinez Avalos, JG, Martorell, C, Maschinski, J, Mendez, E, Mittermeier, RA, Nassar, JM, Negron-Ortiz, V, Oakley, LJ, Ortega-Baes, P, Pin Ferreira, AB, Pinkava, DJ, Pollock, C, Porter, JM, Puente-Martinez, R, Roque Gamarra, J, Saldivia Perez, P, Sanchez Martinez, E, Schipper, J, Smith, M, Sotomayor M del C, JM, Stuart, SN, Superina, M, Tapia Munoz, JL, Taylor, NP, Terrazas, T, Terry, M, Tognelli, M, Trevisson, M, Valverde, T, Van Devender, TR, Veliz-Perez, ME, Walter, HE, Wyatt, SA, Zappi, D, Zavala-Hurtado, JA   +78 more
core   +1 more source

Expression of the KNOTTED HOMEOBOX Genes in the Cactaceae Cambial Zone Suggests Their Involvement in Wood Development [PDF]

, 2017
The vascular cambium is a lateral meristem that produces secondary xylem (i.e., wood) and phloem. Different Cactaceae species develop different types of secondary xylem; however, little is known about the mechanisms underlying wood formation in the ...
Alejandra Vasco, Emilio Petrone, Francisco Vergara-Silva, Gustavo Rodríguez-Alonso, Jorge Reyes-Rivera, Svetlana Shishkova, Teresa Terrazas   +6 more
core   +1 more source

How Nectar-Feeding Bats Localize their Food: Echolocation Behavior of Leptonycteris yerbabuenae Approaching Cactus Flowers. [PDF]

PLoS ONE, 2016
Nectar-feeding bats show morphological, physiological, and behavioral adaptations for feeding on nectar. How they find and localize flowers is still poorly understood.
Tania P Gonzalez-Terrazas, Jens C Koblitz, Theodore H Fleming, Rodrigo A Medellín, Elisabeth K V Kalko, Hans-Ulrich Schnitzler, Marco Tschapka   +6 more
doaj   +1 more source

Population genomics and distribution modeling revealed the history and suggested a possible future of the endemic Agave aurea (Asparagaceae) complex in the Baja California Peninsula. [PDF]

Ecol Evol
Little is known about the phylogeography of the endemic agave species of the Baja California Peninsula. Using over 10,000 single‐nucleotide polymorphisms (SNPs) and spatial data from the Agave aurea species complex (i.e., A. aurea ssp. aurea, A. aurea ssp. promontorii, and A. aurea var. capensis), we determined genetic relationships within this complex
Klimova A, Gutíerrez-Rivera J, Ortega-Rubio A, Eguiarte LE.   +3 more
europepmc   +2 more sources

Fraxinus Parryi, Nom. Nov., of NW Baja California, Mexico [PDF]

, 2001
The common ash of NW Baja California is usually called Fraxinus trifoliata, as in Wiggins\u27 (1980) flora of Baja California. That name is a misspelling of F. trifoliolat, which is a later homonym of F. rriJoliolara W. W. Smith (1916).
Moran, Reid
core   +2 more sources

Cereus peruvianus (Koubo) new cactus fruit for the world

Revista Brasileira de Fruticultura, 2014
Several different species of the columnar cacti of the genera Stenocereus and Pachycereus, were introduced into different semi-arid ecozones in Israel and most of these efforts were of disappointing outcomes, the only exception being the Cereus ...
Yosef Mizrahi
doaj   +1 more source