Male sterility systems in wheat and opportunities for hybrid wheat development

Singh, Sudhir P.; Srivastava, Rakesh K.; Kumar, Jitendra

doi:10.1007/s11738-014-1713-7

Cited by 70 publications

(64 citation statements)

References 98 publications

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“…In previous studies and in this study, we observed that most F 1 hybrids were male sterile, with no development of male gonads (Feng, Li, Cai, Wang, & Nan, ; Wang et al, ). The phenomenon of male sterility occurs widely in hybrids (Coyne, ; Shifriss, ), especially in crops such as maize (Skibbe & Schnable, ), rice (Huang, E, Zhang, & Shu, ) and wheat (Singh, Srivastava, & Kumar, ). Male sterility is of vital importance for the breeding of new varieties in these crops.…”

Section: Discussionmentioning

confidence: 99%

Selection of a new scallop strain, QN‐2, from the backcross of Peruvian scallop × bay scallop F ₁ hybrids with bay scallops

Wang

Liu

et al. 2019

Aquac Res

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Cross-breeding has been successfully applied in agriculture and aquaculture industries to improve important production traits. In our previous studies, we produced the F 1 hybrids with high heterosis in growth by crossing the bay scallops with the Peruvian scallops and selected a new strain, Bohai Red, from the F 1 hybrids. In this study, we selected another new strain from the backcross (BC 1 ) of the F 1 hybrids with bay scallops. The base cohort (G 0 ) was size-selected from the BC 1 , and the G 1 , G 2 , G 3 and G 4 cohorts were produced with size-selected brood stocks from the G 0 , G 1 , G 2 and G 3 cohorts respectively. Our results showed that average shell height, shell length, shell width and whole body weight of the G 4 cohort were increased by 16.8%, 16.8%, 11.5% and 43.6%, respectively, compared with the unselected control group of bay scallop. This new strain has now become one of the major cultured Argopecten scallops in northern China waters and was later named QN-2. K E Y W O R D Sbackcross, bay scallops, Peruvian scallops, strain QN-2

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Section: Discussionmentioning

confidence: 99%

Selection of a new scallop strain, QN‐2, from the backcross of Peruvian scallop × bay scallop F ₁ hybrids with bay scallops

Wang

Liu

et al. 2019

Aquac Res

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“…Wheat provides about 20% of the world's daily supply [1]. Heterosis utilization in wheat is one of the effective ways for further increasing yield potential and stability, which is of great importance for increasing the productivity of wheat to meet the growing demand [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Heterosis utilization in wheat is one of the effective ways for further increasing yield potential and stability, which is of great importance for increasing the productivity of wheat to meet the growing demand [2][3][4]. However, how to develop hybrids with super heterosis and produce hybrid seeds efficiently remains a worldwide problem during past half a century [1,4].…”

Section: Introductionmentioning

confidence: 99%

Efficient development of practically usable thermo-photo sensitive genic male sterile lines in wheat through doubled haploid breeding

Abdelkhalik

et al. 2020

Preprint

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Background: Two-line hybrid wheat system using thermo-photo sensitive genic male sterility (TPSGMS) is now a dominant and promising approach of wheat heterosis utilization in China. However, during past twenty years only several TPSGMS lines have been capable of practical application in hybrid wheat breeding and production, which reduced the opportunities and efficiency of creating hybrids with strong heterosis. Introducing doubled haploid (DH) breeding could be a helpful strategy to efficiently develop practically usable TPSGMS lines. Results: F 1 s and selected F 2 and F 3 sterile plants from eight crosses made from two commercial TPSGMS lines were used to produce DH lines by using the wheat × maize system. Twenty four elite sterile lines possessing stable sterility, good outcrossing and yield potential, resistance to yellow rust and powdery mildew, and desirable plant height (50-60 cm) were obtained within 4 years through at least one year evaluation. Twenty from twenty four elite lines showed stable sterility in repeated tests of two or three years, will be selected for hybrid breeding. The percentage of elite lines within total tested DH lines produced from filial generations was in the order of F 2 > F 3 > F 1 in this study. Conclusions: Our study shows that DH breeding is more efficient for the selection of traits controlled by recessive gene(s) compared with conventional breeding, especially for the sterility of TPSGMS wheat. Coupling DH techniques with conventional breeding would be an efficient strategy for developing practically usable wheat TPSGMS lines in respect to number and saving time, which is helpful for further improving the efficiency of wheat hybrid breeding. Producing DHs from F 2 generation appeared to be the better choice considering the balance of shortening breeding time and overall breeding efficiency.

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“…In wheat, several studies demonstrated positive and negative effects on disease resistance [3,4], photosynthesis and respiration [5], plant height and heading date [6], yield potential [7], seed quality [8], alterations in transcriptomes and metabolomes [9] as well as abiotic stress tolerance [10,11]. However, practical utilization of cytoplasmic diversity and NC interaction in agriculture remains largely unexplored except for well-studied cytoplasmic male sterility and nuclear restoration of fertility for hybrid wheat production [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Differential and interactive effects of cytoplasmic substitution and seed ageing on submergence stress response in wheat (Triticum aestivum L.)

Takenaka

Yamamoto

Nakamura

2018

Biotechnology & Biotechnological Equipment

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Cytoplasmic genomes affect various phenotypes, including abiotic stress responses, through interaction with nuclear genomes in plants. We focused on the effects of cytoplasmic substitution on germination and seedling growth in combinations with submergence and seed ageing, both of which are known to inhibit these traits posing a challenge in agriculture and seed banking. We carried out comparative phenotypic studies of submergence and seed ageing effects using a series of nucleus-cytoplasm (NC) hybrids of wheat, in which 11 heterologous cytoplasms of Triticum and Aegilops species were combined with a common nucleus. Adopting the testtube bioassay, germination and seedling growth were studied using aged and non-aged seeds. Imbibed seeds were subjected to 3-days submergence followed by incubation under de-submergence conditions. Seed ageing reduced the germination rates in NC hybrids. Submergence and seed ageing both caused reduction of seedling growth evaluated by shoot length in all or most of the lines. The magnitude of shoot growth inhibition by submergence and seed ageing varied greatly among NC hybrids compared with the nuclear donor, and three distinct response types were recognized. Submergence and seed ageing, in combination, caused leaf chlorosis in most of NC hybrids. Our results suggested that the observed diverse effects of cytoplasmic substitution were exerted through differential interactions with submergence and seed ageing. Further studies are needed to clarify the mechanisms underlying cytoplasmic genome diversity and interaction with nuclear genomes affecting submergence and seed ageing responses in wheat. ARTICLE HISTORY

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Male sterility systems in wheat and opportunities for hybrid wheat development

Cited by 70 publications

References 98 publications

Selection of a new scallop strain, QN‐2, from the backcross of Peruvian scallop × bay scallop F ₁ hybrids with bay scallops

Selection of a new scallop strain, QN‐2, from the backcross of Peruvian scallop × bay scallop F ₁ hybrids with bay scallops

Efficient development of practically usable thermo-photo sensitive genic male sterile lines in wheat through doubled haploid breeding

Differential and interactive effects of cytoplasmic substitution and seed ageing on submergence stress response in wheat (Triticum aestivum L.)

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Male sterility systems in wheat and opportunities for hybrid wheat development

Cited by 70 publications

References 98 publications

Selection of a new scallop strain, QN‐2, from the backcross of Peruvian scallop × bay scallop F 1 hybrids with bay scallops

Selection of a new scallop strain, QN‐2, from the backcross of Peruvian scallop × bay scallop F 1 hybrids with bay scallops

Efficient development of practically usable thermo-photo sensitive genic male sterile lines in wheat through doubled haploid breeding

Differential and interactive effects of cytoplasmic substitution and seed ageing on submergence stress response in wheat (Triticum aestivum L.)

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Selection of a new scallop strain, QN‐2, from the backcross of Peruvian scallop × bay scallop F ₁ hybrids with bay scallops

Selection of a new scallop strain, QN‐2, from the backcross of Peruvian scallop × bay scallop F ₁ hybrids with bay scallops