method for selective sterilization of male gametes in a plantThe present invention relates to the use of 2,6-bis(trifluoromethyl)-3-methoxycarbonyl-4-hydroxypyridine and certain derivatives thereof as gametocides.LEE LEN FANG, USRUMINSKI PETER G, US...
The production of 2n gametes in plants, i.e. gametes with a somatic chromosome number, is considered to be the dominant process involved in the origin of p... R Veilleux - 《Plant Breed Rev》 被引量: 631发表: 1985年 Polyploidy in Species Populations Polyploidy in populations of well-dif...
On the basis of the study results,unreduced gametes(2n gametes) which are less and very important for plant breeding can be found throughout plant evolution.The present paper reviewed the general researches,the classification,the formational mechanism and the influencing factors about 2n gametes,and...
RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook planogamete (redirected fromPlanogametes) Encyclopedia (ˈplænəɡəˌmiːt) n (Biology) a motile gamete, such as a spermatozoon [C19: from Greekplanoswandering (see planet) + gamete] ...
A Virus Infection in the Marine Brown Alga Ectocarpus siliculosus (Phaeophyceae) Laboratory cultures of Ectocarpus siliculosus originating from New Zealand showed a defect in gametangium formation. Nuclear divisions in gametangium initi... DG Müller,H Kawai,B Stache,... - 《Plant Biology》 被引量...
Heterogemety is the where an individual produce two types of gametes. The most appropriate anwer is : View Solution In order to find out the different types of gametes produced by a pea plant having the genotype AaBb, it should be crossed to a plant with the genotype View Solution ...
Sukhareva, N.B. 1984: The significance of unreduced gametes in evolution Makroevolyutsiya Materialy I Vses konf po probl evolyutsii: 54-55 Schifino Wittmann, M.T.; Dall' Agnol, M. 2001: Unreduced gametes in plant breeding Ciencia Rural 31(1): 169-175 Skiebe, K. 1969: Investigation...
Key message Meiosis and unreduced gametes. Sexual flowering plants produce meiotically derived cells that give rise to the male and female haploid gametophytic phase. In the ovule, usually a single precursor (the megaspore mother cell) undergoes meiosis to form four haploid megaspores; however, nu...
Why is the process of fertilization in a flowering plant referred to as double fertilization? How is the fertilization process in the flowering plant is unique? Explain the formation of the male and female gametes and the process of fer...
1. A method for obtaining a plant producing Second Division Restitution 2n gametes, wherein said method comprises mutating, with a dominant mutation, by random or targeted mutagenesis or by genetic transformation, a plant comprising a gene, herein designated as TDM gene, coding for a protein desi...