Results 71 to 80 of about 16,393 (262)

Phylogenetic reconciliation provides new insights into the evolutionary diversification of the glutamine synthetase gene family in seed plants. [PDF]

FEBS J
Phylogenetic analyses of glutamine synthetase (GS) in seed plants revealed that all three major evolutionary lineages (GS2, GS1a, and GS1b) must have been present in the common ancestor, with GS2 being the first lineage to diverge. Unlike GS1b, GS1a and GS2 are usually single‐copy genes, even though they underwent duplications that resulted in ...
Aledo E, Cañas RA, Cantón FR, Aledo JC.   +3 more
europepmc   +2 more sources

Branching principles of animal and plant networks identified by combining extensive data, machine learning, and modeling

, 2020
Branching in vascular networks and in overall organismic form is one of the most common and ancient features of multicellular plants, fungi, and animals.
Bentley, Lisa P., Brummer, Alexander B, Buzzard, Vanessa, Enquist, Brian J., Gray, Andrew, Lymperopoulos, Panagiotis, Oliveras, Imma, Savage, Van M., Shen, Jocelyn, Tekin, Elif   +9 more
core   +1 more source

Loss of YABBY2-Like Gene Expression May Underlie the Evolution of the Laminar Style in Canna and Contribute to Floral Morphological Diversity in the Zingiberales. [PDF]

, 2015
The Zingiberales is an order of tropical monocots that exhibits diverse floral morphologies. The evolution of petaloid, laminar stamens, staminodes, and styles contributes to this diversity.
Almeida, Ana MR, Morioka, Kelsie, Specht, Chelsea D, Yockteng, Roxana   +3 more
core   +2 more sources

Polyploidy in Gymnosperms [PDF]

Evolution, 1959
The gymnosperms constitute a primitive group of seed plants which have a considerable evolutionary interest. A substantial amount of literature on the morphology of the group exists, but very little has been written about the various cytogenetic factors responsible for evolution within the group.
openaire   +1 more source

Assessing the evolutionary distinctiveness of a highly threatened plant group: The urgency to preserve a unique lineage of evolution in Brazil

PLANTS, PEOPLE, PLANET, EarlyView.
Brazil's diverse flora is under several threats, with many unique lineages facing extinction, particularly in biodiverse regions like the Cerrado and campo rupestre. This study sheds light on the conservation needs of Cambessedesia (Melastomataceae), an endemic genus with 95% of its species endangered, using an approach to rank and prioritise species ...
Najla Bastos Scheidegger, Raquel C. Pizzardo, Bruno Vilela, Thuane Bochorny, Juliana Gastaldello Rando   +4 more
wiley   +1 more source

Structural studies of a fucogalactoxyloglucan from pinus radiata primary cell walls : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Biochemistry at Massey University [PDF]

, 1980
1. The changes in carbohydrate composition of elongating Pinus radiata primary cell walls were investigated. In the hemicellulose B extracts, a large increase in the percentage of non-starch, non-cellulosic, glucose was found to occur on cessation of ...
Little, John William Lester
core  

Digitising biological collections to advance National Species Inventories: A case study from the flora of Chile

PLANTS, PEOPLE, PLANET, EarlyView.
In response to Chile's public policy to establish a national biodiversity inventory and monitoring system, we launched the HerbarioDigital.cl portal. We have digitised over 120,000 specimens representing more than 3,900 species from two Chilean herbaria, integrating them through a curated local taxonomic index.
Ricardo A. Segovia, Juan M. Sáez, Francisco A. Squeo, Alicia E. Marticorena, Julián Caro, Pablo C. Guerrero   +5 more
wiley   +1 more source

A survey of plant and algal genomes and transcriptomes reveals new insights into the evolution and function of the cellulose synthase superfamily [PDF]

, 2014
Background Enzymes of the cellulose synthase (CesA) family and CesA-like (Csl) families are responsible for the synthesis of celluloses and hemicelluloses, and thus are of great interest to bioenergy research.
Cao, Huansheng, Johns, Mitrick, Rupani, Manju, Yin, Yanbin   +3 more
core   +2 more sources

Catalysts for change: Museum gardens in a planetary emergency

PLANTS, PEOPLE, PLANET, EarlyView.
Natural history museums are often seen as places with indoor galleries full of dry‐dusty specimens, usually of animals. But if they have gardens associated with them, museums can use living plants to create narratives that link outside spaces to inside galleries, bringing to life the challenges facing biodiversity.
Ed Baker, Paul Kenrick, Sandra Knapp, Tom McCarter, John Tweddle   +4 more
wiley   +1 more source

Microsatellite analysis reveals significant genetic differentiation and conservation challenges in the threatened conifer Amentotaxus yunnanensis H. L. Li

Environmental Research Communications
Habitat loss due to deforestation and overexploitation are major causes threatening the long-term survival of Amentotaxus yunnanensis , a vulnerable conifer native to Vietnam.
Quang Vuong Le, Minh Tam Nguyen, Thi Thu Hien Dang, Thi Oanh Pham, Trung Thanh Nguyen   +4 more
doaj   +1 more source