Inheritance of herbicide resistance in two germplasm lines of Clearfield* rice (Oryza sativa L.)

2007 ◽  
Vol 87 (3) ◽  
pp. 659-669 ◽  
Author(s):  
Ida Wenefrida ◽  
Herry S Utomo ◽  
Mona M Meche ◽  
Jennifer L Nash
Keyword(s):  
Oryza Sativa ◽  
Herbicide Resistance ◽  
Oryza Sativa L ◽  
Nuclear Gene ◽  
Red Rice ◽  
Resistance Level ◽  
Herbicide Resistant ◽  
Resistant Gene ◽  
Clearfield Rice ◽  
Imidazolinone Resistance

Inheritance of imidazolinone resistance in two germplasms of Clearfield rice lines, 93AS3510 and PWC-16, was studied using parents, F1 hybrids, F2 populations , and F2:3 families. Germination tests were conducted in Petri dishes under controlled environments to reveal any discrete phenotypic responses to herbicide treatments. PWC-16 has a herbicide resistance level 4.9 times higher than that of 93AS3510. A concentration of 1 mg L-1 a.i. (active ingredient) of imazethapyr herbicide produced three distinctive response types in 93AS3510 crosses, while a concentration of 10 mg L-1 was required to differentiate the three response types in PWC-16 crosses. The segregation of the herbicide-resistant gene from both Clearfield rice lines fit into the Mendelian 1:2:1 (susceptible:intermediate:resistant) ratio. There was no maternal effect associated with the inheritance of the trait. The imidazolinone resistance, therefore, is governed by a single incomplete dominant nuclear gene. The F1 hybrid from a cross between resistant and non-resistant lines will produce resistant plants. Clearfield rice provides an effective use of imidazolinone herbicides to control red rice, the most troublesome weed of rice, along with other rice weeds. Preventing transfer of the herbicide-resistant gene into red rice is crucial to maintain its effectiveness. Key words: Rice, Oryza sativa, imazethapyr, herbicide resistance, imidazolinone, incomplete dominance, heritability

scholarly journals Performance of the agronomic traits of six advanced promising lines of red rice (oryza sativa l.) grown on the paddy field

2021 ◽  
Vol 681 (1) ◽  
pp. 012033
Author(s):  
G R Sadimantara ◽  
E Febrianti ◽  
LO Afa ◽  
S Leomo ◽  
Muhidin ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Paddy Field ◽  
Agronomic Traits ◽  
Oryza Sativa L ◽  
Red Rice

Antidiabetic Potential of Purple and Red Rice (Oryza sativa L.) Bran Extracts

2016 ◽  
Vol 64 (26) ◽  
pp. 5345-5353 ◽  
Author(s):  
Stephen M. Boue ◽  
Kim W. Daigle ◽  
Ming-Hsuan Chen ◽  
Heping Cao ◽  
Mark L. Heiman
Keyword(s):  
Oryza Sativa ◽  
Oryza Sativa L ◽  
Red Rice

Characterization of Spontaneous Crosses between Clearfield Rice (Oryza sativa) and Red Rice (Oryza sativa)

2006 ◽  
Vol 20 (3) ◽  
pp. 576-584 ◽  
Author(s):  
Vinod K. Shivrain ◽  
Nilda R. Burgos ◽  
Karen A. K. Moldenhauer ◽  
Ronald W. Mcnew ◽  
Tomilea L. Baldwin
Keyword(s):  
Oryza Sativa ◽  
Agronomic Traits ◽  
Red Rice ◽  
Leaf Pubescence ◽  
Seed Shattering ◽  
Wide Range ◽  
Clearfield Rice ◽  
Pubescence Color ◽  
Seed Characteristics

Experiments were conducted to determine the inheritance of resistance in crosses between imazethapyr-resistant rice and red rice. Past experiments on red rice control, using the Clearfield rice technology, resulted in outcrossing between Clearfield rice and Stuttgart strawhull red rice. The F2 generation of these spontaneous crosses were characterized with respect to inheritance of imazethapyr resistance, leaf color and leaf pubescence, and seed shattering, pubescence, color, and size. Agronomic traits of hybrids were also observed in relation to their parents. To determine the segregation of resistance among F2 phenotypes, the response of three- to four-leaf plants to imazethapyr was scored 3 wk after application as resistant (R, no imazethapyr symptoms), susceptible (S, death of plants), or intermediate (I, stunted plants). R, I, and S phenotypes segregated in a 1:2:1 ratio in the F2 generation. Two- or three-gene inheritance was documented for leaf and seed characteristics. A wide range in onset of flowering (70 to 130 d after planting) was observed in F2 families, although 6% of the plants did not flower during the growing season. F2 plants were taller and had more tillers than any of their parents. Resistance to imazethapyr is associated with a single, incompletely dominant allele.

Risk assessment of the transfer of imazethapyr herbicide tolerance from Clearfield rice to red rice (Oryza sativa)

Euphytica ◽  
2006 ◽  
Vol 152 (1) ◽  
pp. 75-86 ◽  
Author(s):  
Weiqiang Zhang ◽  
Steven D. Linscombe ◽  
Eric Webster ◽  
Siyuan Tan ◽  
James Oard
Keyword(s):  
Risk Assessment ◽  
Oryza Sativa ◽  
Herbicide Tolerance ◽  
Red Rice ◽  
Clearfield Rice

Genetic analysis and high-resolution mapping of a premature senescence gene Pse(t) in rice (Oryza sativa L.)

Genome ◽  
2005 ◽  
Vol 48 (4) ◽  
pp. 738-746 ◽  
Author(s):  
Fuzhen Li ◽  
Guocheng Hu ◽  
Yaping Fu ◽  
Huamin Si ◽  
Xuemei Bai ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
High Resolution ◽  
Genetic Analysis ◽  
Oryza Sativa L ◽  
Nuclear Gene ◽  
Physical Distance ◽  
Premature Senescence ◽  
Genetic Linkage Analysis ◽  
High Resolution Mapping ◽  
Resolution Mapping

A rice mutant, designated pse(t) (premature senescence, tentatively), was isolated from a T-DNA-inserted transgenic population. Senescence advanced more markedly in pse(t) than in wild-type ('Zhonghua 11', japonica) plants. Genetic analysis of pse(t) revealed that the premature senescence mutation was controlled by a single recessive nuclear gene, but that it was not induced by T-DNA insertion. In an effort to understand the genetic and molecular basis underlying premature senescence in rice, a map-based cloning strategy was used to localize Pse(t). High-resolution mapping of the Pse(t) locus was carried out using simple sequence repeat (SSR) and cleaved amplified polymorphic sequence (CAPS) markers. An F2 population, comprising 1691 pse(t) individuals derived from a cross of the pse(t) mutant with 'Longtepu' (indica), was constructed. Several new polymorphism markers were developed in this study. Genetic linkage analysis showed that the Pse(t) gene was located on the long arm of chromosome 7. It was found that the Pse(t) gene cosegregated with 3 markers and was flanked by markers SS22 and PP21. Thus, the Pse(t) gene is located within a genetic distance of 0.15 cM, corresponding to a physical distance of 220 kb. These findings provide the basic information that can be used for the final isolation of this gene in the rice premature-senescence pathway.Key words: genetic analysis, high-resolution mapping, Oryza sativa L., premature senescence.

Gene flow from weedy red rice (Oryza sativa L.) to cultivated rice and fitness of hybrids

2009 ◽  
Vol 65 (10) ◽  
pp. 1124-1129 ◽  
Author(s):  
Vinod K Shivrain ◽  
Nilda R Burgos ◽  
David R Gealy ◽  
Marites A Sales ◽  
Kenneth L Smith
Keyword(s):  
Oryza Sativa ◽  
Gene Flow ◽  
Oryza Sativa L ◽  
Red Rice ◽  
Cultivated Rice ◽  
Weedy Red Rice
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