Results 21 to 30 of about 2,747 (214)

Fire‐released seed dormancy ‐ a global synthesis

open access: yesBiological Reviews, Volume 97, Issue 4, Page 1612-1639, August 2022., 2022
ABSTRACT Seed dormancy varies greatly between species, clades, communities, and regions. We propose that fireprone ecosystems create ideal conditions for the selection of seed dormancy as fire provides a mechanism for dormancy release and postfire conditions are optimal for germination.
Juli G. Pausas, Byron B. Lamont
wiley   +1 more source

Evolutionary relationships in Panicoid grasses based on plastome phylogenomics (Panicoideae; Poaceae) [PDF]

open access: yes, 2016
Background: Panicoideae are the second largest subfamily in Poaceae (grass family), with 212 genera and approximately 3316 species. Previous studies have begun to reveal relationships within the subfamily, but largely lack resolution and/or robust ...
Burke, Sean V.   +9 more
core   +2 more sources

Cytogenetics to functional genomics: six decades journey of Professor P.K. Gupta

open access: yesPlant Biotechnology Journal, Volume 20, Issue 6, Page 1021-1030, June 2022., 2022
Summary We had the fortune of starting our scientific/research careers in the Molecular Biology and Crop Biotechnology Laboratory of Professor P.K. Gupta at Ch. Charan Singh University, Meerut, UP, India. Here, we describe the most important scientific contributions of our beloved mentor in the area of cytotaxonomy, cytogenetics, mutation breeding ...
Pawan L. Kulwal   +2 more
wiley   +1 more source

The Australasian grass flora in a global context

open access: yesJournal of Systematics and Evolution, Volume 60, Issue 3, Page 675-690, May 2022., 2022
Australasia is known for its globally unique flora and fauna, but does this apply to its grasses? We found that Australasian grass genera and species are either endemic or globally widespread, with 88% of its C3 and 93% of C4 species derived from places that had a long history of grassland ecosystems. Most grasses migrated into Australasia via stepping
Susanna R. Bryceson, John W. Morgan
wiley   +1 more source

A phylogeny of Setaria (Poaceae, Panicoideae, Paniceae) and related genera based on the chloroplast gene ndhF [PDF]

open access: yes, 2009
The genus Setaria is the largest genus in the so-called bristle clade, a monophyletic group of panicoid grasses distinguished by the presence of sterile branches, or bristles, in their inflorescences.
Aliscioni, Sandra Silvina   +4 more
core   +1 more source

Classification and Biogeography of Panicoideae (Poaceae) in the New World [PDF]

open access: yes, 2007
Panicoideae (Poaceae) in the New World comprise 107 genera (86 native) and 1357 species (1248 native). As circumscribed herein, Panicoideae include eight tribes: Andropogoneae, Arundinelleae, Centotheceae, Gynerieae, Isachneae, Paniceae ...
Davidse, Gerrit   +3 more
core   +3 more sources

Utricle morphology of the species in Carex sect. Paniceae (Cyperaceae) and its systematic significance(薹草属少花薹草组(莎草科)的果囊形态及其系统学意义)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2022
用扫描电镜观察了少花薹草组Carex sect. Paniceae(莎草科)26种3变种的果囊形态和微形态特征。结果表明:(1)果囊形状(喙除外)为倒卵球形、椭球形或卵球形,均为钝三棱状,果囊长度为1.99~7.27 mm,喙多弯曲(仅1种C. striatula果囊的喙直立),喙急缩或渐缩,喙长与果囊长度的比值为1/8~1/2,表皮细胞多明显隆起,极少数隆起不明显,且多数性状种内保持稳定;(2)喙口形态分斜截、平截、微二齿和二齿4类,且在种内有变异,如C.
LUYifei(鲁益飞)   +6 more
doaj   +1 more source

The plastid genome of an ornamental grass Pennisetum villosum (Poaceae: Paniceae)

open access: yesMitochondrial DNA. Part B. Resources, 2020
Pennisetum villosum is an ornamental grass and to better determine its phylogenetic location with respect to the other taxa in the tribe Paniceae, the complete plastid genome was sequenced.
Qi Wang
doaj   +1 more source

Cytomorphological studies in some members of tribe Paniceae (Poaceae) from district Kangra of Himachal Pradesh (Western Himalayas) [PDF]

open access: yes, 2013
The present paper deals with cytological studies on the population basis of 21 species belonging to 9 genera of tribe Paniceae of family Poaceae from cytologically unexplored area of Western Himalayas i.e.
Gupta, R.C., Kaur, H., Kumari, S.
core   +2 more sources

Phylogenetic Relationships of the Decumbentes Group of Paspalum, Thrasya, and Thrasyopsis (Poaceae: Panicoideae: Paniceae) [PDF]

open access: yes, 2007
Paspalum (Poaceae: Panicoideae: Paniceae) includes 330 species distributed mainly in tropical and subtropical regions of America. Due to the large number of species and convergence in many characters, an adequate infrageneric classification is still ...
Denham, Silvia S, Zuloaga, Fernando O
core   +3 more sources

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