A horizontal gene transfer at the origin of phenylpropanoid metabolism: a key adaptation of plants to land

Emiliani, Giovanni; Fondi, Marco; Fani, Renato; Gribaldo, Simonetta

doi:10.1186/1745-6150-4-7

Cited by 145 publications

(140 citation statements)

References 42 publications

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“…However, the origins of sporopollenin-like molecules goes as far back as the charophyte algae in which sporopollenin-like substances were identified in the zygotes of Co-leochate (Delwiche et al 1989). Both lignin-and sporopollenin-like substances are found outside of the streptophyte lineage, so without molecular data about the origins of biosynthetic genes for these compounds in charophyte algae, the possibility of convergence or horizontal transfer into embryophytes cannot be ruled out (Brooks and Shaw 1978;Emiliani et al 2009;Martone et al 2009). …”

Section: Multicellular Innovations In Land Plants That May Be Rooted mentioning

confidence: 99%

Green Algae and the Origins of Multicellularity in the Plant Kingdom

Umen

2014

Cold Spring Harbor Perspectives in Biology

121

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The green lineage of chlorophyte algae and streptophytes form a large and diverse clade with multiple independent transitions to produce multicellular and/or macroscopically complex organization. In this review, I focus on two of the best-studied multicellular groups of green algae: charophytes and volvocines. Charophyte algae are the closest relatives of land plants and encompass the transition from unicellularity to simple multicellularity. Many of the innovations present in land plants have their roots in the cell and developmental biology of charophyte algae. Volvocine algae evolved an independent route to multicellularity that is captured by a graded series of increasing cell-type specialization and developmental complexity. The study of volvocine algae has provided unprecedented insights into the innovations required to achieve multicellularity.

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Section: Multicellular Innovations In Land Plants That May Be Rooted mentioning

confidence: 99%

Green Algae and the Origins of Multicellularity in the Plant Kingdom

Umen

2014

Cold Spring Harbor Perspectives in Biology

121

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“…Naturally produced recombinant DNA can result from: meiotic recombination; the action of diverse and often abundant mobile genetic elements; gene duplication; chromosomal inversions and translocations; novel gene assemblies; shuffling of exons and other gene fragments; chromosomal duplication; horizontal gene transfer; and incorporation of viral genes. In fact, all land plants appear to be "natural GMOs," as all contain genes apparently acquired horizontally [178][179][180][181][182][183][184][185][186][187][188][189][190][191][192][193][194]. To my knowledge, there is no published, validated research showing any fundamental biochemical or biophysical difference between DNA recombined in a test tube vs. that recombined in a living cell.…”

Section: Consumption Of Ge Cropsmentioning

confidence: 98%

Genetic Engineering and Sustainable Crop Disease Management: Opportunities for Case-by-Case Decision-Making

Vincelli

2016

Sustainability

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Genetic engineering (GE) offers an expanding array of strategies for enhancing disease resistance of crop plants in sustainable ways, including the potential for reduced pesticide usage. Certain GE applications involve transgenesis, in some cases creating a metabolic pathway novel to the GE crop. In other cases, only cisgenessis is employed. In yet other cases, engineered genetic changes can be so minimal as to be indistinguishable from natural mutations. Thus, GE crops vary substantially and should be evaluated for risks, benefits, and social considerations on a case-by-case basis. Deployment of GE traits should be with an eye towards long-term sustainability; several options are discussed. Selected risks and concerns of GE are also considered, along with genome editing, a technology that greatly expands the capacity of molecular biologists to make more precise and targeted genetic edits. While GE is merely a suite of tools to supplement other breeding techniques, if wisely used, certain GE tools and applications can contribute to sustainability goals.

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“…Compared with aquatic environments, terrestrial habitats brought many challenges to early land plants (e.g., desiccation, UV radiation, and microbial attack). During their colonization of land, plants evolved some complex regulatory systems, body plans, and other phenotypic novelties that facilitated their adaptation and radiation in a hostile terrestrial environment [32,33]. The origin and evolution of these novelties were aided through acquisition of genes from other organisms [32][33][34].…”

Section: Hgt In Plant Colonization Of Landmentioning

confidence: 99%