Results 91 to 100 of about 5,131 (204)
Cytogenetical Studies in Two Tetraploid Mulberry Varieties (Moraceae) [PDF]
, 2013 Morus L. an economically important genus has more than 60 species distributed in both the Hemispheres. Chromosome number varies from 2n=28 to 2n=308 with ploidy level from x to 22x.
Munirajappa, ., Venkatesh, K.H.
core +1 more source
Microsporogenesis in hexaploid Morus serrata Roxb.
CYTOLOGIA, 1989 Detailed microsporogenesis of hexaploid Morus serrata has been studied. This is the first record of natural hexaploidy (2n=6x=84) in the species. Meiosis has been found regular with high frequency of bivalents. The frequency of hexa-, penta-, tetra- and trivalents is considerably less suggesting its allopolyploid nature.
null Basavaiah +2 more
openaire +2 more sources
2n Gamete formation in the genus Brachiaria (Poaceae: Paniceae). [PDF]
, 2011 Microsporogenesis of several Brachiaria species of the Brazilian collection at Embrapa Beef Cattle has been analyzed in detail. This paper reports abnormal cytokinesis in three accessions of three different species (Brachiaria humidicola, 2n = 4x = 36 ...
BOLDRINI, K. R. +5 more
core
Synteny analysis in Rosids with a walnut physical map reveals slow genome evolution in long-lived woody perennials. [PDF]
, 2015 BackgroundMutations often accompany DNA replication. Since there may be fewer cell cycles per year in the germlines of long-lived than short-lived angiosperms, the genomes of long-lived angiosperms may be diverging more slowly than those of short-lived ...
Aradhya, Mallikarjuna +9 more
core +2 more sources
Gayana: Botanica, 2011 Acmella bellidioides es una hierba perenne pequeña, que crece naturalmente en las provincias del nordeste de Argentina, en Brasil, Paraguay y Uruguay.
Patricia M Aguilera +2 more
doaj
Cold influences male reproductive development in plants : a hazard to fertility, but a window for evolution [PDF]
, 2019 Being sessile organisms, plants suffer from various abiotic stresses including low temperature. In particular, male reproductive development of plants is extremely sensitive to cold which may dramatically reduce viable pollen shed and plant fertility ...
De Storme, Nico +4 more
core +1 more source
MERISTEM STRUCTURE, DEVELOPMENT OF CONES AND MICROSPOROGENESIS OF TEHRAN PINE (PINUS ELDARICA Medw.) [PDF]
Journal of Plant Development, 2014 Tehran pine (Pinus eldarica Medw.) belongs to Pinaceae family with significant economic and ecological benefits. To gain further insight into anatomical-developmental structure of P.
Ahmad MAJD +3 more
doaj
Brazilian Archives of Biology and Technology, 2008 The aim of this work was to carry out the reproductive studies on Brazilian accessions of ipecac, Psychotria ipecacuanha. It presented heterostyly, with brevistylous and longistylous flowers.
Margarete Magalhães Souza +3 more
doaj +1 more source
A Cytological Analysis of a Naturally Occurring Helianthus Hybrid [PDF]
, 1957 Author Institution: Department of Botany, Ohio Wesleyan University, Delaware ...
Long, Robert W.
core
Cytological studies of Brassicaceae Burn. (Cruciferae Juss.) from western Himalayas [PDF]
, 2013 Цитологические исследования проведены на 12 видах семейства Brassicaceae Burn. из популяций различных географических зон Западных Гималаев. Определены хромосомные числа для Barbaraea intermedia (n = 16), Cardamine loxostemonoides (n = 8), Nasturtium ...
Gupta, R.C. +4 more
core +1 more source