Antecedentes y Objetivos: La familia Caryophyllaceae tiene una amplia distribución geográfica, especialmente en regiones templadas y cálidas del hemisferio norte. Sus especies habitan principalmente en ambientes abiertos o sitios perturbados. El objetivo del presente estudio fue llevar a cabo el inventario, documentar la distribución y realizar el tratamiento taxonómico de las especies de Caryophyllaceae presentes en el estado de Aguascalientes, México.Métodos: Se realizaron colectas en el estado de Aguascalientes a partir de agosto 2012 hasta junio 2015. En cada sitio de colecta se tomaron coordenadas geográficas con base en Datum WGS 84 y se registró el tipo de vegetación. El material colectado fue identificado por medio de claves taxonómicas especializadas y cotejado con material de herbario. Para el tratamiento taxonómico se realizaron descripciones para familia, géneros y especies, así como claves dicotómicas para su identificación. Se elaboraron mapas de distribución con base en los datos tomados en campo y de los ejemplares de herbario consultados.Resultados clave: En Aguascalientes, la familia Caryophyllaceae está representada por 11 géneros y 21 especies, de las cuales cuatro son registros nuevos para el estado. La mayor cantidad de especies se encuentra en tipos de vegetación de clima templado, principalmente bosque de Quercus y bosque mixto, seguido por matorral xerófilo y pastizales. El municipio en el que se distribuye el mayor número de especies es San José de Gracia, seguido por Calvillo. Del total de especies encontradas en el estado, cinco son endémicas de México.Conclusiones: La riqueza de géneros y especies de la familia Caryophyllaceae presentes en Aguascalientes es comparable con estados de mayor tamaño. El presente trabajo amplía el conocimiento de la flora con la que cuenta el estado y de la familia Caryophyllaceae en México.

Mammillaria bombycina is a cactus distributed in the central region of Mexico. Cactaceae have the particularity of surviving drought and high temperatures, which is why in vitro propagation studies have been carried out successfully to preserve this species and use it as a study model in cacti. In this contribution, a de novo transcriptome of M. bombycina was produced under in vitro conditions for the identification and expression of genes related to abiotic stress. Samples were sequenced using an Illumina platform, averaging 24 million clean readings. From assembly and annotation, 84,975 transcripts were generated, 55% of which were unigenes. Among these, the presence of 13 isoforms of genes belonging to glyoxalase I, II and III were identified. An analysis of the qRT-PCR expression of these genes was performed under in vitro and ex vitro conditions and dehydration at 6 and 24 h. The highest expression was observed under greenhouse conditions and dehydration at 24 h, according to the control. The de novo assembly of the M. bombycina transcriptome remains a study model for future work in cacti.

A compendium of the legumes of the subfamily Papilionoideae, tribes Amorpheae, Brongniarteae, and Dalbergieae in northeastern Mexico is presented for the first time, including changes in their botanical nomenclature within tribes and genera. Based on recently published studies, the taxonomic limits of several genera and new ones segregated such as Marina and Ctenodon are clarified and included. Based mainly on fieldwork over the past 40 years, as well as reviewing specimens in national and international herbaria, we show the total diversity of legumes of the subfamily Papilionoideae, tribes Amorpheae, Brongniarteae, and Dalbergieae. The three tribes include 16 genera and 75 species. Tribe Amorpheae comprises five genera (Amorpha, Dalea, Eysenhardtia, Marina, and Psorothamnus) and forty-three species; tribe Brongniartieae comprises two genera Brongniartia and Harpalyce) and eight species; and tribe Dalbergieae comprises nine genera (Aeschynomene, Amicia, Arachis, Ctneodon, Dalbergia, Diphysa, Nissolia, Stylosanthes, and Zornia) and twenty-four species. Dalea is by far the genus with the highest number of species and infraspecific categories, as well as in a number of endemisms because 17 (51%) of them are endemic to Mexico, and six of them are endemic to the northeastern part of the country. Of the 13 species of Eysenhardtia present in Mexico, 31% of them reach the northeast region and three of them are exclusive to this region. There are no species of the Brongniartieae and Dalbergieae tribes endemic to northeastern Mexico, but 10 of their species are endemic to Mexico.